Publications

Soman, S., & Zappe, H. (2026). Light-induced thermal deformation analysis in multilayer liquid crystal network actuators. Optical Materials Express, 16(3), 569. https://doi.org/10.1364/ome.579428

Zappe, H. (2025). Light-actuated artificial muscles for dynamic microsystems.

Ferrer-Altabás, S., Sauter, D., Zappe, H., & Micó, V. (2025). Liquid lens focimeter for astigmatic and spherical ophthalmic lens characterization. Optics & Laser Technology, 188, 112878. https://doi.org/10.1016/j.optlastec.2025.112878

Sauter, D., & Zappe, H. (2025). An all-liquid anamorphic imaging system. Optics Express, 33(13), 27438. https://doi.org/10.1364/oe.562626

Sauter, D., & Zappe, H. (2025). Closed-loop wavefront calibration of a multi-electrode electrowetting-based tunable microlens. Journal of Optical Microsystems, 5(01), 014003. https://doi.org/10.1117/1.jom.5.1.014003

Banerjee, K., Rajaeipour, P., Ataman, Ç., & Zappe, H. (2024a). Adaptive process for fabricating non-tunable freeform optical surfaces.

Banerjee, K., Rajaeipour, P., Ataman, Ç., & Zappe, H. (2024b). Method of controlling cascaded phase modulators.

Calikoglu, A., Zappe, H., & Ataman, C. (2024). A 3D-printed bistable electromagnetic microlens actuator. Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVII, 29. https://doi.org/10.1117/12.2692667

Sauter, D., & Zappe, H. (2024). Closed-loop wavefront calibration of a multi-electrode electrowetting-based tunable microlens. MOEMS and Miniaturized Systems XXIII, 1289903. https://doi.org/10.1117/12.2692067

Sieben, M., & Zappe, H. (2024). Dynamically variable intensity patterns projected using an optofluidic phase-shifter array. Applied Optics, 63(31), 8091. https://doi.org/10.1364/ao.534133

Dorn, A., Zappe, H., & Ataman, C. (2024). Conjugate adaptive optics extension for commercial microscopes. Advanced Photonics Nexus, 3(05), 056018. https://doi.org/10.1117/1.apn.3.5.056018

Dorn, A., Zappe, H., & Ataman, Ç. (2024). Plug-and-play adaptive optics microscopy with full-field correction using isoplanatic patch estimation and field segmentation. Optics Express, 32(23), 41764. https://doi.org/10.1364/oe.533494

Calikoglu, A., Lux, F., Taege, Y. A., Zappe, H., & Ataman, Ç. (2024). 3D nano‐printed bistable microlens actuator for reconfigurable micro‐optical systems. Advanced Functional Materials, 34(48), 2408867. https://doi.org/10.1002/adfm.202408867

Jenne, S., Tugnolo, A., Oliveira, H. M., & Zappe, H. (2024). Flexible microspectrometer for grape maturation monitoring in the vineyard. Journal of Optical Microsystems, 4(01), 014004. https://doi.org/10.1117/1.jom.4.1.014004

Oliveira, H. M., Tugnolo, A., Fontes, N., Marques, C., Geraldes, Á., Jenne, S., Zappe, H., Graça, A., Giovenzana, V., Beghi, R., Guidetti, R., Piteira, J., & Freitas, P. (2024). An autonomous Internet of Things spectral sensing system for in-situ optical monitoring of grape ripening: design, characterization, and operation. Computers and Electronics in Agriculture, 217, 108599. https://doi.org/10.1016/j.compag.2023.108599

Ataman, Ç., Vilches, S., & Zappe, H. (2023). Device for tissue coagulation.

Zappe, H., Ataman, Ç., Banerjee, K., & Rajaeipour, P. (2023). Refractive wavefront correction device.

González-Cerdas, G., Ataman, C., Zappe, H., & Haidarian, S. (2023). Sensor-based position feedback for miniaturized piezoelectric fiber optic scanners. MOEMS and Miniaturized Systems XXII, 15. https://doi.org/10.1117/12.2655329

Cu-Nguyen, P.-H., & Zappe, H. (2023). All-glass 3D-printed fiber couplers. The Twenty-Eighth Microoptics Conference : MOC2023, 1–2. https://doi.org/10.23919/moc58607.2023.10302857

Vilches, S., Zappe, H., & Ataman, Ç. (2023). Multi-point fiber-optic distance sensor for endoscopic surgery monitoring. IEEE Photonics Technology Letters : PTL, 35(16), 883–886. https://doi.org/10.1109/lpt.2023.3270628

Sieben, M., Sauter, D., & Zappe, H. (2023). Phase retrieval for the generation of arbitrary intensity distributions using an optofluidic phase shifter. Optics Express, 31(22), 36000–36011. https://doi.org/10.1364/oe.496598

Jenne, S., & Zappe, H. (2023). Multiwavelength tissue-mimicking phantoms with tunable vessel pulsation. Journal of Biomedical Optics, 28(4), 045003. https://doi.org/10.1117/1.jbo.28.4.045003

Lall, J., & Zappe, H. (2023). Understanding photomechanical behavior of liquid crystalline‐based actuators. Macromolecular Materials and Engineering, 308(5). https://doi.org/10.1002/mame.202300063

Jenne, S., & Zappe, H. (2023). Flexible micro-spectrometer for grape maturation monitoring. MOEMS and Miniaturized Systems XXII, 1243408. https://doi.org/10.1117/12.2652893

Jenne, S., & Zappe, H. (2023). Simulation of light interaction with seedless grapes. Journal of the Science of Food and Agriculture, 103(1), 57–63. https://doi.org/10.1002/jsfa.12111

Tan, C., Cu-Nguyen, P.-H., & Zappe, H. (2023). Optimization processes for three-dimensional microprinting of glass micro-optics. MOEMS and Miniaturized Systems XXII, 1–7. https://doi.org/10.1117/12.2656190

Zappe, H. (2022). Recent advances in fluidic optical microsystems.

Sieben, M., & Zappe, H. (2022). Phase retrieval for generating arbitrary intensity distributions using an optofluidic projector. Imaging Systems and Applications : Part of Imaging and Applied Optics Congress, CTu3F.1. https://doi.org/10.1364/cosi.2022.ctu3f.1

Cu-Nguyen, P.-H., & Zappe, H. (2022). Printed glass freeform optics with high surface quality. Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XV, 1–6. https://doi.org/10.1117/12.2608757

Dorn, A., Banerjee, K., Rajaeipour, P., Zappe, H., & Ataman, C. (2022a). Compact refractive objective add-on for adaptive optics microscopy. Adaptive Optics and Wavefront Control for Biological Systems VIII, 15. https://doi.org/10.1117/12.2609746

Dorn, A., Banerjee, K., Rajaeipour, P., Zappe, H., & Ataman, C. (2022b). Flexible conjugate adaptive optics with a refractive wavefront modulator. Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXIX, 12. https://doi.org/10.1117/12.2609851

Sauter, D., Zhao, P., & Zappe, H. (2022). Design of an all-liquid anamorphic imaging device. EOS Annual Meeting (EOSAM 2022), 12006. https://doi.org/10.1051/epjconf/202226612006

Lall, J., & Zappe, H. (2022). MEMS-compatible structuring of liquid crystal network actuators using maskless photolithography. Smart Materials and Structures, 31(11), 115014. https://doi.org/10.1088/1361-665x/ac95e5

Jenne, S., & Zappe, H. (2022). Simulation of the optical properties of seedless grapes including Henyey-Greenstein scattering. 3D Image Acquisition and Display: Technology, Perception and Applications, JTu2A.8. https://doi.org/10.1364/3D.2022.JTu2A.8

Dorn, A., Zappe, H., & Ataman, Ç. (2022). Analysis of assembly tolerance compensation in microscope objectives with a free-form element at the aperture stop. Optics Express, 30(20), 35871. https://doi.org/10.1364/OE.465764

Minet, Y., Herr, S. J., Breunig, I., Zappe, H., & Buse, K. (2022). Electro-optically tunable single-frequency lasing from neodymium-doped lithium niobate microresonators. Optics Express : The International Electronic Journal of Optics, 30(16), 28335–28344. https://doi.org/10.1364/OE.463044

Lall, J., & Zappe, H. (2022). In situ, spatially variable photoalignment of liquid crystals inside a glass cell using brilliant yellow. Photosensitive Materials and Their Applications II, 2621178. https://doi.org/10.1117/12.2621178

Schoeb, D. S., Wollensak, C., Kretschmer, S., González-Cerdas, G., Ataman, Ç., Kayser, G., Dressler, F. F., Gratzke, C., Zappe, H., & Miernik, A. (2022). Ex-vivo evaluation of miniaturized probes for endoscopic optical coherence tomography in urothelial cancer diagnostics. Annals of Medicine and Surgery, 77, 103597. https://doi.org/10.1016/j.amsu.2022.103597

Jenne, S., Zappe, H., & Herdt, S. (2022). Towards pulsatile multilayer tissue phantoms. Design and Quality for Biomedical Technologies XV. https://doi.org/10.1117/12.2608118

Lall, J., & Zappe, H. (2022). Structuring of liquid crystal elastomer actuators with selective polymerization for MEMS devices. Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XV. https://doi.org/10.1117/12.2608696

Breunig, I., Minet, Y., Seyler, T., Bertz, A., Holl, P., Basler, M., Zappe, H., & Buse, K. (2022). Adiabatic frequency conversion in microresonators for multi-wavelength holography. Laser Resonators, Microresonators, and Beam Control XXIV, 1198707. https://doi.org/10.1117/12.2607606

Zappe, H. (2021). Launching a new journal in times of COVID. Journal of Optical Microsystems, 1(04), 040101. https://doi.org/10.1117/1.jom.1.4.040101

Sauter, D., Sieben, M., Zhao, P., & Zappe, H. (2021). Simultaneous beam steering and shaping using a single-interface optofluidic component. Journal of Optical Microsystems, 1(04), 044002. https://doi.org/10.1117/1.JOM.1.4.044002

Taege, Y. A., González-Cerdas, G., Jund, F., Zappe, H., & Ataman, Ç. (2021). Manufacturing and assembly of an all-glass OCT microendoscope. Journal of Micromechanics and Microengineering, 31(12), 125005. https://doi.org/10.1088/1361-6439/ac2d9d

Minet, Y., Basler, M., Zappe, H., Buse, K., & Breunig, I. (2021). Advances in Pockels-effect-based adiabatic frequency conversion in lithium niobate high-Q optical microresonators. 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542310

Jun, L., Šimek, H., Ilioaë, D., Jung, N., Bräse, S., Zappe, H., Dittmeyer, R., & Ladewig, B. P. (2021). In situ sensors for flow reactors – a review. Reaction Chemistry & Engineering, 6(9), 1497–1507. https://doi.org/10.1039/D1RE00038A

Taege, Y. A., Jund, F., Bauer, C., Sandie, D., Zappe, H., & Ataman, Ç. (2021). Development of a clinical-grade OCT/OCT-angiography endomicroscope for imaging in the bladder. The 21st International Conference on Solid-State Sensors, Actuators and Microsystems : Transducers 2021 : 20-25 June 2021, Online : Virtual Conference. https://doi.org/10.1109/Transducers50396.2021.9495384

Rajaeipour, P., Sauther, M., Banerjee, K., Zappe, H., & Ataman, Ç. (2021). Seventh-order wavefront modulation with a gravity-neutral optofluidic deformable phase plate. Journal of Optical Microsystems, 1(03), 034502. https://doi.org/10.1117/1.JOM.1.3.034502

Mader, M., Schlatter, O., Heck, B., Warmbold, A., Dorn, A., Zappe, H., Risch, P., Helmer, D., Kotz, F., & Rapp, B. E. (2021). High-throughput injection molding of transparent fused silica glass. Science, 372(6538), 182–186. https://doi.org/10.1126/science.abf1537

Zhao, P., Sauter, D., & Zappe, H. (2021). Tunable fluidic lens with a dynamic high-order aberration control. Applied Optics, 60(18), 5302. https://doi.org/10.1364/AO.425637

Zhao, P., Li, Y., & Zappe, H. (2021). Accelerated electrowetting-based tunable fluidic lenses. Optics Express, 29(10), 15733. https://doi.org/10.1364/OE.423460

Zitation nicht verfügbar

Minet, Y., Zappe, H., Breunig, I., & Buse, K. (2021). Electro-optic control of lithium niobate bulk whispering gallery resonators: analysis of the distribution of externally applied electric fields. Crystals, 11(3), 298. https://doi.org/10.3390/cryst11030298

Kriegmair, M. C., Hein, S., Schoeb, D. S., Zappe, H., Suarez-Ibarrola, R., Waldbillig, F., Grüne, B., Pohlmann, P. F., Praus, F., Wilhelm, K., Gratzke, C., Miernik, A., & Bolenz, C. (2021). Erweiterte Bildgebung in der urologischen Endoskopie. Der Urologe, 60, 8–18. https://doi.org/10.1007/s00120-020-01400-9

Vilches, S., Sivaprakash, S., Ataman, Ç., & Zappe, H. (2021). Fully fiber-optic intensity modulator for large-core, high-NA multi-mode fibers. Optical Engineering, 60(06), 067101. https://doi.org/10.1117/1.oe.60.6.067101

Rajaeipour, P., Dorn, A., Banerjee, K., Zappe, H., & Ataman, C. (2020). Stacked optofluidic wavefront modulators as a woofer-tweeter system for adaptive optics. Imaging and Applied Optics Congress, OF3B.4. https://doi.org/10.1364/aoms.2020.of3b.4

Wang, Z., Cu-Nguyen, P.-H., & Zappe, H. (2020). A two-step Fabry-Perot filter array in mid-infrared wavelength range for integration with photochemical microreactors. Sensors and Actuators : A Physical, 311, 112047. https://doi.org/10.1016/j.sna.2020.112047

Wang, Z., Lall, J., Folwill, Y., & Zappe, H. (2020). Compact tunable mid-infrared Fabry–Pérot filters actuated by liquid crystal elastomers. https://doi.org/10.1088/1361-6439/ab8907

Rajaeipour, P., Banerjee, K., Dorn, A., Zappe, H., & Ataman, Ç. (2020). Cascading optofluidic phase modulators for performance enhancement in refractive adaptive optics. Advanced Photonics, 2(06), 066005. https://doi.org/10.1117/1.AP.2.6.066005

Folwill, Y., Zeitouny, Z., Lall, J., & Zappe, H. (2020). A practical guide to versatile photoalignment of azobenzenes. Liquid Crystals, 48(6), 1–11. https://doi.org/10.1080/02678292.2020.1825842

Folwill, Y., & Zappe, H. (2020). Quantifying spatial alignment and retardation of nematic liquid crystal films by Stokes polarimetry. Applied Optics, 59(26), 7968–7974. https://doi.org/10.1364/ao.400207

Rajaeipour, P., Dorn, A., Banerjee, K., Zappe, H., & Ataman, C. (2020). Extended field-of-view adaptive optics in microscopy via numerical field segmentation. Applied Optics, 59(12), 3784–3791. https://doi.org/10.1364/ao.388000

Hampson, K. M., Cui, J., Wincott, M., Lane, R., Hussain, S. S., Banerjee, K., Rajaeipour, P., Zappe, H., Ataman, C., & Booth, M. J. (2020). Closed-loop multiconjugate adaptive optics for microscopy. Adaptive Optics and Wavefront Control for Biological Systems VI. https://doi.org/10.1117/12.2544391

Placzek, F., Cordero Bautista, E., Kretschmer, S., Wurster, L. M., Knorr, F., González-Cerdas, G., Erkkilä, M. T., Stein, P., Ataman, C., Hermann, G. G., Mogensen, K., Hasselager, T., Andersen, P. E., Zappe, H., Popp, J., Drexler, W., Leitgeb, R. A., & Schie, I. W. (2020). Morpho-molecular ex vivo detection and grading of non-muscle-invasive bladder cancer using forward imaging probe based multimodal optical coherence tomography and Raman spectroscopy. The Analyst, 145(4), 1445–1456. https://doi.org/10.1039/c9an01911a

Vilches, S., Ataman, C., & Zappe, H. (2020a). Non-contact endoscopic temperature measurement. Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX. https://doi.org/10.1117/12.2543062

Vilches, S., Ataman, Ç., & Zappe, H. (2020). Endoscopic pyrometric temperature sensor. Optics Letters, 45(7), 1730. https://doi.org/10.1364/ol.383337

Folwill, Y., & Zappe, H. (2020). Measuring the spatial distribution of liquid crystal alignment and retardation using stokes polarimetry. Optics and Photonics for Advanced Dimensional Metrology. https://doi.org/10.1117/12.2552931

Minet, Y., Reis, L., Szabados, J., Werner, C. S., Zappe, H., Buse, K., & Breunig, I. (2020). Pockels-effect-based adiabatic frequency conversion in ultrahigh-Q microresonators. Optics Express, 28(3), 2939. https://doi.org/10.1364/oe.378112

Elsaegh, S., Veit, C., Zschieschang, U., Amayreh, M. A., Letzkus, F., Sailer, H., Jurisch, M., Würfel, U., Klauk, H., Zappe, H., & Manoli, Y. (2020). Low-power organic light sensor array based on active-matrix common-gate transimpedance amplifier on foil for imaging applications. IEEE Journal of Solid State Circuits, 55(9), 2553–2566. https://doi.org/10.1109/JSSC.2020.2993732

Rajaeipour, P., Dorn, A., Banerjee, K., Zappe, H., & Ataman, Ç. (2020). Fully refractive adaptive optics fluorescence microscope using an optofluidic wavefront modulator. Optics Express, 28(7), 9944–9956. https://doi.org/10.1364/OE.387734

González-Cerdas, G., Stein, P., Kretschmer, S., Bauer, C., Sandic, D., Ataman, Ç., & Zappe, H. (2020). Micro-structured glass probe for endoscopic Optical Coherence Tomography. Biomedical Spectroscopy, Microscopy, and Imaging, 113590I. https://doi.org/10.1117/12.2555069

Osorio, J. D., Vilches, S., & Zappe, H. (2020). Diffuse reflectance spectroscopy as a monitoring tool for gastric mucosal devitalization treatments with argon plasma coagulation. Journal of Biophotonics, 13(3), e201960125. https://doi.org/10.1002/jbio.201960125

Wang, Z., & Zappe, H. (2019). An ultra-miniaturized mid-infrared spectrometer with no moving parts for photochemical analysis. 2019 International Conference on Optical MEMS and Nanophotonics (OMN), 132–133. https://doi.org/10.1109/omn.2019.8925187

Lall, J., Wang, Z., Folwill, Y., Cu-Nguyen, P.-H., & Zappe, H. (2019). Tunable optical filters using artificial muscles. 2019 24th Microoptics Conference (MOC), 92–93. https://doi.org/10.23919/moc46630.2019.8982842

Kretschmer, S., Ataman, Ç., & Zappe, H. (2019). Glass 3D printing for ultra-miniaturized endoscopic optical systems. 2019 24th Microoptics Conference (MOC), 76–77. https://doi.org/10.23919/moc46630.2019.8982808

Banerjee, K., Rajaeipour, P., Zappe, H., & Ataman, C. (2019). A 37-actuator polyimide deformable mirror with electrostatic actuation for adaptive optics microscopy. Journal of Micromechanics and Microengineering, 29(8), 085005. https://doi.org/10.1088/1361-6439/ab2370

Dorn, A., Rajaeipour, P., Banerjee, K., Zappe, H., & Ataman, C. (2019). Compact all-in-line adaptive optics fluorescence microscope using an optofluidic phase modulator. 2019 International Conference on Optical MEMS and Nanophotonics (OMN). https://doi.org/10.1109/omn.2019.8925270

Elsaegh, S., Zschieschang, U., Borchert, J. W., Klauk, H., Zappe, H., & Manoli, Y. (2019). Compact DC modeling of organic thin-film transistors including their parasitic non-linear contact effects based on a novel extraction method. IEEE Transactions on Electron Devices, 66(11), 4907–4914. https://doi.org/10.1109/ted.2019.2941438

Folwill, Y., Shah, S. B., & Zappe, H. (2019). Mems-Processed Artificial Muscles with Freely-Programmable Actuation Direction. 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII). https://doi.org/10.1109/transducers.2019.8808722

Rajaeipour, P., Banerjee, K., Zappe, H., & Ataman, C. (2019). Optimization-based real-time open-loop control of an optofluidic refractive phase modulator. Applied Optics, 58(4), 1064–1072. https://doi.org/10.1364/ao.58.001064

Vilches, S., Zappe, H., & Ataman, C. (2019). Interferometric, fiber-based, real-time distance sensor for endoscopic applications. Advanced Biomedical and Clinical Diagnostic and Surgical Guidance Systems XVII. https://doi.org/10.1117/12.2507811

Wurster, L. M., Shah, R. N., Placzek, F., Kretschmer, S., Niederleithner, M., Ginner, L., Ensher, J., Minneman, M. P., Hoover, E. E., Zappe, H., Drexler, W., Leitgeb, R. A., & Ataman, C. (2019). Endoscopic optical coherence tomography angiography using a forward imaging piezo scanner probe. Journal of Biophotonics, 12(4), e201800382. https://doi.org/10.1002/jbio.201800382

Shah, R. N., Kretschmer, S., Nehlich, J., Ataman, C., & Zappe, H. (2019). Compact OCT probe for flexible endoscopy enabled by piezoelectric scanning of a fiber/lens assembly. MOEMS and Miniaturized Systems XVIII. https://doi.org/10.1117/12.2508481

Kartmann, S., Kopp, D., Masoumi, M., Zengerle, R., Zappe, H., & Koltay, P. (2019). Thermischer Einweg-Strömungssensor auf Basis einer flexiblen Polyimid-Folie.

Rajaeipour, P., Banerjee, K., Ataman, C., & Zappe, H. (2019). Optimization-based open-loop control of phase modulators for adaptive optics. Adaptive Optics and Wavefront Control for Biological Systems V, 10886. https://doi.org/10.1117/12.2509633

Banerjee, K., Rajaeipour, P., Ataman, C., & Zappe, H. (2019). Refractive opto-fluidic wavefront modulator with electrostatic push-pull actuation. Adaptive Optics and Wavefront Control for Biological Systems V. https://doi.org/10.1117/12.2507040

Zappe, H. (2018). Fluidic micro-imaging systems.

Li, P., Dorn, A., Rezem, M., Honnef, K., & Zappe, H. (2018). Reusable thin-film all-polymer couplers for vertical light coupling to single-mode waveguides. Applied Optics, 57(18), 5161. https://doi.org/10.1364/ao.57.005161

Wurster, L. M., Kretschmer, S., Placzek, F., Vilches, S., Niederleithner, M., Ataman, C., Zappe, H., & Leitgeb, R. A. (2018). Endoscopic optical coherence tomography angiography using a piezo scanner. 2018 International Conference on Optical MEMS and Nanophotonics (OMN), 1–2. https://doi.org/10.1109/omn.2018.8454643

Banerjee, K., Rajaeipour, P., Ataman, Ç., & Zappe, H. (2018). Optofluidic adaptive optics. Applied Optics, 57(22), 6338. https://doi.org/10.1364/AO.57.006338

Zappe, H. (2018b). Polymer optics for tunable and printable optical systems (Invited talk).

Zappe, H. (2018a). Fluidic micro-imaging systems (Keynote talk).

Banerjee, K., Rajaeipour, P., Ataman, C., & Zappe, H. (2018). An Optofiuidic Refractive Phase Modulator with an Electrostatic 2D Actuator Array. 2018 International Conference on Optical MEMS and Nanophotonics (OMN). https://doi.org/10.1109/omn.2018.8454600

Kretschmer, S., Jäger, J., Vilches, S., Ataman, C., & Zappe, H. (2018). A bimodal endoscopic imager in a glass package. Journal of Micromechanics and Microengineering, 28(10), 105009 (8pp). https://doi.org/10.1088/1361-6439/aaceb5

Wolf, R., Breunig, I., Zappe, H., & Buse, K. (2018). Scattering-loss reduction of ridge waveguides by sidewall polishing. Optics Express, 26(16), 19815–19820. https://doi.org/10.1364/oe.26.019815

Wolf, R., Jia, Y., Bonaus, S., Werner, C. S., Herr, S. J., Breunig, I., Buse, K., & Zappe, H. (2018). Quasi-phase-matched nonlinear optical frequency conversion in on-chip whispering galleries. Optica, 5(7), 872–875. https://doi.org/10.1364/optica.5.000872

Banerjee, K., Rajaeipour, P., Ataman, C., & Zappe, H. (2018a). A highly-miniaturized optofluidic refractive adaptive optics system. Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP). https://doi.org/10.1364/aoms.2018.ow2j.6

Cu-Nguyen, P.-H., Wang, Z., Folwill, Y., & Zappe, H. (2018). Tunable bandpass filter for mid-infrared wavelengths using liquid crystal elastomer actuators. MOEMS and Miniaturized Systems XVII. https://doi.org/10.1117/12.2289594

Li, P., Sherman, S., Rezem, M., Honnef, K., & Zappe, H. (2018). Temperature-dependence of polymer grating couplers for single-mode waveguides. Integrated Optics: Devices, Materials, and Technologies XXII. https://doi.org/10.1117/12.2289444

Kretschmer, S., Jäger, J., Ataman, C., Zappe, H., & Vilches, S. (2018). Integration and biocompatible packaging of multi-modal endoscopic imagers using 3D glass micro structuring. MOEMS and Miniaturized Systems XVII. https://doi.org/10.1117/12.2289480

Zhao, P., Ataman, C., & Zappe, H. (2018). A miniaturized camera objective with 2X optical zoom. MOEMS and Miniaturized Systems XVII. https://doi.org/10.1117/12.2289742

Banerjee, K., Rajaeipour, P., Ataman, C., & Zappe, H. (2018b). A low-cost, 25-actuator electrostatic deformable mirror with polyimide membrane for adaptive optics microscopy. MOEMS and Miniaturized Systems XVII. https://doi.org/10.1117/12.2288780

Cu-Nguyen, P.-H., Wang, Z., & Zappe, H. (2017). Concepts for compact mid-IR spectroscopy in photochemistry. Advanced Sensor Systems and Applications VII, 1–7. https://doi.org/10.1117/12.2254455

Zappe, H. (2017c). Tubular optofluidics (Invited talk).

Zappe, H. (2017b). Optofluidics for aberration-corrected tunable optical imaging (Invited talk).

Zappe, H. (2017a). Bendable, strechable and printable polymer optics (Invited talk).

Zappe, H. (2017d). Tunable imaging systems using three-dimensional optofluidics (Invited talk).

Kopp, D., Brender, T., Dorn, A., Lehmann, L., & Zappe, H. (2017). Three-dimensional all-fluidic imaging systems. 2017 22nd Microoptics Conference (MOC). https://doi.org/10.23919/moc.2017.8244517

Zhao, P., Cu-Nguyen, P.-H., & Zappe, H. (2017). Compact structured-light projector for 3D surface profiling. 2017 22nd Microoptics Conference (MOC). https://doi.org/10.23919/moc.2017.8244630

Ditter, D., Chen, W.-L., Best, A., Zappe, H., Koynov, K., Ober, C. K., & Zentel, R. (2017). MEMS analogous micro-patterning of thermotropic nematic liquid crystalline elastomer films using a fluorinated photoresist and a hard mask process. Journal of Materials Chemistry, 47(5), 12635–12644. https://doi.org/10.1039/c7tc03958a

Bhuvaneshwaran, A., Sherman, S., & Zappe, H. (2017). Spectral response of Bragg gratings in multimode polymer waveguides. Applied Optics, 56(34), 9573–9582. https://doi.org/10.1364/ao.56.009573

Wolf, R., Zappe, H., Buse, K., & Breunig, I. (2017). Batch-processed high-Q integrated lithium-niobate-on-insulator ridge waveguide whispering-gallery resonators. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). https://doi.org/10.1109/cleoe-eqec.2017.8086600

Wolf, R., Breunig, I., Zappe, H., & Buse, K. (2017). Cascaded second-order optical nonlinearities in on-chip micro rings. Optics Express, 25(24), 29927–29933. https://doi.org/10.1364/oe.25.029927

Vilches, S., Kretschmer, S., Ataman, C., & Zappe, H. (2017). Forward-looking OCT endomicroscope based on a compact Fourier-plane piezo fiber scanner. 2017 International Conference on Optical MEMS and Nanophotonics (OMN). https://doi.org/10.1109/omn.2017.8051494

Zhao, P., Ataman, C., & Zappe, H. (2017). Miniaturized variable-focus objective employing a liquid-filled tunable aspherical lens. Optical Engineering, 56(10), 103110. https://doi.org/10.1117/1.oe.56.10.103110

Kopp, D., Lehmann, L., Breeder, T., Dorn, A., & Zappe, H. (2017). Tubular optofluidics as a versatile optical toolbox. 2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS). https://doi.org/10.1109/transducers.2017.7994186

Vilches, S., Kretschmer, S., Ataman, C., & Zappe, H. (2017). Miniaturized Fourier-plane fiber scanner for OCT endoscopy. Journal of Micromechanics and Microengineering, 27. https://doi.org/10.1088/1361-6439/aa8915

Xiao, Y., Mendez, S. A., Hofmann, M., Gauch, M., Ehlers, H., Ristau, D., Müller, C., & Zappe, H. (2017). Sensitivity enhancement of polymeric Mach–Zehnder interferometers by use of thin high-index films. Sensors and Actuators, 265, 181–186. https://doi.org/10.1016/j.sna.2017.08.037

Elsaegh, S., Zappe, H., Manoli, Y., Klauk, H., & Zschieschang, U. (2017). A 1.6μW tunable organic transimpedance amplifier for photodetector applications based on gain-boosted common-gate input stage and voltage-controlled resistor with ±0.5% nonlinearity. ESSCIRC 2017 – 43rd IEEE European Solid State Circuits Conference. https://doi.org/10.1109/esscirc.2017.8094529

Kopp, D., Brender, T., & Zappe, H. (2017). All-liquid dual-lens optofluidic zoom system. Applied Optics, 56(13), 3758–3763. https://doi.org/10.1364/ao.56.003758

Zhao, P., Ataman, C., & Zappe, H. (2017). A miniaturized adaptive-focus camera objective employing a gravity-immune liquid-tunable aspherical lens. MOEMS and Miniaturized Systems XVI : 30 January-1 February 2017, San Francisco, California, United States, 101160C. https://doi.org/10.1117/12.2252067

Kretschmer, S., Vilches, S., Blattmann, M., Ataman, C., & Zappe, H. (2017). Design and optimization of a miniaturized imaging probe for simultaneous endomicroscopy and optical coherence tomography. Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI, 100530B. https://doi.org/10.1117/12.2254090

Wolf, R., Breunig, I., Zappe, H., & Buse, K. (2017). Q-factor enhancement of integrated lithium-niobate-on-insulator ridge waveguide whispering-gallery-mode resonators by surface polishing. Laser Resonators, Microresonators, and Beam Control XIX : 30 January-2 February 2017, San Francisco, California, United States, 1009002. https://doi.org/10.1117/12.2251516

Sherman, S., Xiao, Y., Hofmann, M., Schmidt, T., Gleißner, U., & Zappe, H. (2016). Optical temperature sensing on flexible polymer foils. SPIE Proceedings, 9888, 98880I. https://doi.org/10.1117/12.2227470

Zappe, H. (2016c). Printable planar polymer optics (Invited talk).

Zappe, H. (2016b). Photons and fluids (Invited talk).

Zappe, H. (2016a). Advances in 2D and 3D optofluidic systems (Invited talk).

Zhao, P., Ataman, C., & Zappe, H. (2016). Fabrication and chacacterization of spherical aberration-free tunable aspherical lenses. 2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS). https://doi.org/10.1109/memsys.2016.7421699

Yu, Y., Zappe, H., & Zhang, X. (2016). Experimental investigation on the lensing and Talbot effects of finite-sized 2D periodic metallic nanoaperture arrays. Photonic and Phononic Properties of Engineered Nanostructures VI, 975618. https://doi.org/10.1117/12.2209354

Xiao, Y., Hofmann, M., Wang, Z., Langenecker, A., Shermann, S., Gleißner, U., & Zappe, H. (2016). Temperature characterization of integrated optical all-polymer Mach-Zehnder interferometers. Micro-Optics 2016 : 4-5 April 2016, Brussels, Belgium, 98880F1–98880F8. https://doi.org/10.1117/12.2224460

Zhao, P., Ataman, C., & Zappe, H. (2016a). Design, fabrication and characterization of a liquid-tunable, gravity-immune aspherical lens. 2016 International Conference on Optical MEMS and Nanophotonics (OMN). https://doi.org/10.1109/omn.2016.7565884

Banerjee, K., Rajaeipour, P., Ataman, C., & Zappe, H. (2016). Piezoelectric PVDF actuated, lightweight deformable thin mirror for adaptive optics. 2016 International Conference on Optical MEMS and Nanophotonics (OMN). https://doi.org/10.1109/omn.2016.7565915

Zhang, S., Ataman, C., & Zappe, H. (2016). A compact architecture for high-frequency resonant microscanners with low dynamic deformation. 2016 International Conference on Optical MEMS and Nanophotonics (OMN). https://doi.org/10.1109/omn.2016.7565865

Xiao, Y., Langenecker, A., Hofmann, M., Sherman, S., Gleißner, U., Müller, C., & Zappe, H. (2016). Multimode interference structures as sensing elements integrated into Mach-Zehnder interferometers in polymer foils. Advanced Sensor Systems and Applications VII : 12-14 October 2016, Beijing, China, 10025V1–10025V10. https://doi.org/10.1117/12.2247610

Zappe, H. (2016). Advances in 2D and 3D optofluidic systems.

Ackermann, T. N., Dietvorst, J., Sanchis, A., Salvador, J. P., Munoz-Berbel, X., Alvarez-Conde, E., Kopp, D., Zappe, H., Marco, M.-. P., & Llobera, A. (2016). Modular optofluidic systems (MOPS). SPIE BioPhotonics Australasia : 17-19 October 2016, Adelaide, Australia, 100131C. https://doi.org/10.1117/12.2242997

Kopp, D., & Zappe, H. (2016). Tubular astigmatism-tunable fluidic lens based on a flexible polymide foil. 2016 IEEE Photonics Conference (IPC). https://doi.org/10.1109/ipcon.2016.7831064

Petsch, S., Grewe, A., Köbele, L., Sinzinger, S., & Zappe, H. (2016). Ultra-thin tunable Alvarez lens system actuated by artificial muscles. Applied Optics, 55(10), 2718–2723. https://doi.org/10.1364/AO.55.002718

Xiao, Y., Hofmann, M., Wang, Z., Sherman, S., & Zappe, H. (2016). Design of all-polymer asymmetric Mach–Zehnder interferometer sensors. Applied Optics, 55(13), 3566–3573. https://doi.org/10.1364/ao.55.003566

Petsch, S., Khatri, B., Schuhladen, S., Köbele, L., Rix, R., Zentel, R., & Zappe, H. (2016). Muscular MEMS — the engineering of liquid crystal elastomer actuators. Smart Materials and Structures, 25(8), 085010. https://doi.org/10.1088/0964-1726/25/8/085010

Zhao, P., Ataman, C., & Zappe, H. (2016). Gravity-immune liquid-filled tunable lens with reduced spherical aberration. Applied Optics, 55(28), 7816–7823. https://doi.org/10.1364/AO.55.007816

Blattmann, M., Kretschmer, S., Thiele, S., Ataman, C., Zappe, H., Herkommer, A., & Seifert, A. (2016). Bimodal endoscopic probe combining white-light microscopy and optical coherence tomography. Applied Optics, 55(15), 4261–4269. https://doi.org/10.1364/ao.55.004261

Ruh, D., Subramanian, S., Sherman, S., Ruhhammer, J., Theodor, M., Lebrecht, D., Förster, K., Heilmann, C., Beyersdorf, F., Zappe, H., & Seifert, A. (2016). Photonics sensing of aterial distension. Biomedical Optics Express, 7(9), 3230–3246. https://doi.org/10.1364/BOE.7.003230

Xiao, Y., Hofmann, M., Wang, Z., Sherman, S., Li, P., & Zappe, H. (2016). Integrated all-polymer Mach-Zehnder interferometers without interaction window in asymmetric configuration. Integrated Optics: Devices, Materials, and Technologies XX : 15-17 February 2016, San Francisco, California, United States, 97501V-1 – 97501V-8. https://doi.org/10.1117/12.2228391

Kopp, D., & Zappe, H. (2016). Tubular astigmatism-tunable fluidic lens. Optics Letters, 41(12), 2735. https://doi.org/10.1364/ol.41.002735

Cu-Nguyen, P.-H., & Zappe, H. (2016). Concepts for compact mid-IR spectoscopy in photo-chemistry. Proceedings of SPIE, 10025–10059.

Kopp, D., & Zappe, H. (2016). Tubular focus-tunable fluidic lens based on structured polyimide foils. IEEE Photonics Technology Letters, 28(5), 597–600. https://doi.org/10.1109/lpt.2015.2506187

Hofmann, M., Xiao, Y., Sherman, S., Gleißner, U., Schmidt, T., & Zappe, H. (2016). Asymmetric Mach–Zehnder interferometers without an interaction window in polymer foils for refractive index sensing. Applied Optics, 55(5), 1124–1131. https://doi.org/10.1364/ao.55.001124

Cu-Nguyen, P.-H., Grewe, A., Feßer, P., Seifert, A., Sinzinger, S., & Zappe, H. (2016). An imaging spectrometer employing tunable hyperchromatic microlenses. Light: Science & Applications, 5(4), e16058. https://doi.org/10.1038/lsa.2016.58

Kopp, D., Lehmann, L., & Zappe, H. (2016). Optofluidic laser scanner based on a rotating liquid prism. Applied Optics, 55(9), 2136–2142. https://doi.org/10.1364/ao.55.002136

Petsch, S., Schuhladen, S., Dreesen, L., & Zappe, H. (2016). The engineered eyeball, a tunable imaging system using soft-matter micro-optics. Light, 5(7), e16068–e16068. https://doi.org/10.1038/lsa.2016.68

Yazdani, R., Petsch, S., Fallah, H., Hajimahmoodzadeh, M., & Zappe, H. (2016). Phase shifting in the spatial frequency domain. Optical Engineering, 55(3), 034104. https://doi.org/10.1117/1.oe.55.3.034104

Petsch, S., Rix, R., Schuhladen, S., Zentel, R., & Zappe, H. (2016). Liquid Crystal Elastomer Micro-optics. In Tunable Micro-optics (pp. 346–368). Cambridge University Press. https://doi.org/10.1017/cbo9781139506052.014

Petsch, S., Liebetraut, P., & Zappe, H. (2016). Solid Body Elastomeric Lenses. In Tunable Micro-optics (pp. 176–196). Cambridge University Press. https://doi.org/10.1017/cbo9781139506052.007

Zappe, H. (2016). Tunable Micro-optics. In Tunable Micro-optics (pp. 3–37). Cambridge University Press.

Zappe, H., & Duppé, C. (2016). Tunable Micro-optics. Cambridge University Press.

Schuhladen, S., Banerjee, K., Stürmer, M., Müller, P., Wallrabe, U., & Zappe, H. (2016). Variable optofluidic slit aperture. Light: Science & Applications, 5(1), e16005. https://doi.org/10.1038/lsa.2016.5

Ruh, D., Subramanian, S., Sherman, S., Ruhhammer, J., Theodor, M., Lebrecht, D., Förster, K., Heilmann, C., Beyersdorf, F., Zappe, H., & Seifert, A. (2016). Photonic sensing of arterial distension. 7(9), 3230–3246. https://doi.org/10.1364/BOE.7.003230

Gleißner, U., Khatri, B., Megnin, C., Sherman, S., Xiao, Y., Hofmann, M., Günther, A., Rahlves, M., Roth, B., Zappe, H., & Hanemann, T. (2016). Optically and rheologically tailored polymers for applications in integrated optics. Sensors and Actuators, 241, 224–230. https://doi.org/10.1016/j.sna.2016.02.029

Zappe, H. (2015b). Strechable micro-optics (Keynote talk).

Zappe, H. (2015a). Printable polymer integrated and free-space optics (Plenary talk).

Xiao, Y., Hofmann, M., & Zappe, H. (2015). Design and simulation of integrated optical interferometers fabricated in polymer foils. Integrated Optics: Devices, Materials, and Technologies XIX : 9-11 February 2015, San Francisco, California, United States, 93651F. https://doi.org/10.1117/12.2079276

Blattmann, M., Kretschmer, S., Thiele, S., Zappe, H., Herkommer, A., & Seifert, A. (2015). MEMS endomicroscope for simultaneous bright-field microscopy and optical coherence tomography. 2015 Transducers – 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS). https://doi.org/10.1109/transducers.2015.7180900

Vila-Planas, J., Munoz-Berbel, X., Müller, P., Ibarlucea, B., Kopp, D., Zappe, H., & Llobera, A. (2015). Phaseguide-based optofluidic router for parallel analysis of serum samples. 2015 Transducers – 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS). https://doi.org/10.1109/transducers.2015.7181102

Cu-Nguyen, P.-H., Seifert, A., & Zappe, H. (2015). Tunable hyperchromatic microlens array for compact 2D spectrometry. 2015 20th Microoptics Conference (MOC). https://doi.org/10.1109/moc.2015.7416512

Hofmann, M., Xiao, Y., Sherman, S., Bollgrün, P., Schmidt, T., Gleißner, U., & Zappe, H. (2015). Inkjet printed single-mode waveguides on hot-embossed foils. Optical Systems Design 2015: Optical Fabrication, Testing, and Metrology V : 7-10 September 2015, Jena, Germany, 96281R. https://doi.org/10.1117/12.2191335

Petsch, S., Rix, R., Khatri, B., Schuhladen, S., Müller, P., Zentel, R., & Zappe, H. (2015). Smart artificial muscle actuators : liquid crystal elastomers with integrated temperature feedback. Sensors and Actuators, 231, 44–51. https://doi.org/10.1016/j.sna.2014.10.014

Gleißner, U., Sherman, S., Megnin, C., Zappe, H., & Hanemann, T. (2015). Polymers with customizable optical and rheological properties for printable single-mode waveguides. Procedia Engineering, 120, 3–6. https://doi.org/10.1016/j.proeng.2015.08.553

Zhao, P., Ataman, Ç., & Zappe, H. (2015). Spherical aberration free liquid-filled tunable lens with variable thickness membrane. Optics Express, 12(16), 21264–21278. https://doi.org/10.1364/OE.23.021264

Blattmann, M., Ocker, M., Zappe, H., & Seifert, A. (2015). Jet printing of convex and concave polymer microlenses. Optics Express, 23(19), 24525–24536. https://doi.org/10.1364/OE.23.024525

Spether, D., Scharpf, M., Hennenlotter, J., Schwentner, C., Neugebauer, A., Nüßle, D., Fischer, K., Zappe, H., Stenzl, A., Fend, F., Seifert, A., & Enderle, M. (2015). Real-time tissue differentiation based on optical emission spectroscopy for guided electrosurgical tumor resection. Biomedical Optics Express, 6(4), 1419–1428. https://doi.org/10.1364/BOE.6.001419

Zappe, H. (2014a). Optofluidics for active micro-optics (Invited talk).

Zappe, H. (2014c). Planare Optronische Systeme (Invited talk).

Zappe, H. (2014b). Planar optronic systems: new directions in printable polymer integrated optics (Invited talk).

Rudmann, L., Ordonez, J. S., Zappe, H., & Stieglitz, T. (2014). Hermetic Electrical Feedthroughs Based on the Diffusion of Platinum into Silicon. International Symposium on Microelectronics, 2014(1), 000729–000734. https://doi.org/10.4071/isom-wp45

Mueller, P., Kopp, D., Zappe, H., & Schuhladen, S. (2014). Optofluidic component.

Weber, N., Meinert, T., Zappe, H., & Seifert, A. (2014). Tunable MEMS fiber scanner for confocal microscopy. 2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS). https://doi.org/10.1109/memsys.2014.6765782

Petsch, S., Rix, R., Reith, P., Khatri, B., Schuhladen, S., Ruh, D., Zentel, R., & Zappe, H. (2014). A thermotropic liquid crystal elastomer micro-actuator with integrated deformable micro-heater. 2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS). https://doi.org/10.1109/memsys.2014.6765788

Thiele, S., Blattmann, M., Zappe, H., Seifert, A., & Herkommer, A. (2014). Design of a Hybrid Miniaturized Zoom Imaging System. In Fringe 2013 (pp. 947–950). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-36359-7_179

Sherman, S., & Zappe, H. (2014). Printable Bragg Gratings for Polymer-based Temperature Sensors. Procedia Technology, 15, 702–709. https://doi.org/10.1016/j.protcy.2014.09.041

Zhao, P., Ataman, C., & Zappe, H. (2014). An endoscopic microscope with liquid-tunable aspheric lenses for continuous zoom capability. Micro-Optics 2014 : 14 – 16 April 2014, Brussels, Belgium, 913004. https://doi.org/10.1117/12.2053559

Cu-Nguyen, P.-H., Grewe, A., Endrody, C., Sinzinger, S., Zappe, H., & Seifert, A. (2014). Compact tunable hyperspectral imaging system. 2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS). https://doi.org/10.1109/memsys.2014.6765854

Cu-Nguyen, P.-H., Grewe, A., Sinzinger, S., Zappe, H., & Seifert, A. (2014). Imprinted DOE on varifocal membrane lens. 2014 International Conference on Optical MEMS and Nanophotonics. https://doi.org/10.1109/omn.2014.6924519

Schuhladen, S., Banerjee, K., Stürmer, M., Mueller, P., Wallrabe, U., & Zappe, H. (2014). Scannable optofluidic slit. 2014 IEEE Photonics Conference. https://doi.org/10.1109/ipcon.2014.6995267

Theodor, M., Ruh, D., Subramanian, S., Förster, K., Heilmann, C., Beyersdorf, F., Plachta, D., Manoli, Y., Zappe, H., & Seifert, A. (2014). Implantable pulse oximetry on subcutaneous tissue. Conf Proc IEEE Eng Med Biol Soc, 2014, 2089–2092. https://doi.org/10.1109/embc.2014.6944028

Zhang, W., Zappe, H., & Seifert, A. (2014). Wafer-scale fabricated thermo-pneumatically tunable microlenses. Light: Science & Applications, 3(2), e145–e145. https://doi.org/10.1038/lsa.2014.26

Zhang, W., & Zappe, H. (2014). Thermo-pneumatic micro-optics. Chinese Journal of Optics and Applied Optics, 7(2), 215–224. https://doi.org/10.3788/co.20140702.0215

Ruh, D., Subramanian, S., Theodor, M., Zappe, H., & Seifert, A. (2014). Radiative transport in large arteries. Biomedical Optics Express, 5(1), 54. https://doi.org/10.1364/boe.5.000054

Li, P., Pan, L., & Zappe, H. (2014). Compact Three-Axis Actuator for Positioning a Polymer Microlens in an Optical Pickup. Journal of Microelectromechanical Systems, 23(1), 128–136. https://doi.org/10.1109/jmems.2013.2262599

Solgaard, O., Godil, A. A., Howe, R. T., Lee, L. P., Peter, Y.-A., & Zappe, H. (2014). Optical MEMS: From Micromirrors to Complex Systems. Journal of Microelectromechanical Systems, 23(3), 517–538. https://doi.org/10.1109/jmems.2014.2319266

Schuhladen, S., Preller, F., Rix, R., Petsch, S., Zentel, R., & Zappe, H. (2014). Iris-Like Tunable Aperture Employing Liquid-Crystal Elastomers. Advanced Materials, 26(42), 7247–7251. https://doi.org/10.1002/adma.201402878

Xiao, Y., Pichler, E., Hofmann, M., Bethmann, K., Köhring, M., Willer, U., & Zappe, H. (2014). Towards Integrated Resonant and Interferometric Sensors in Polymer Films. Procedia Technology, 15, 691–701. https://doi.org/10.1016/j.protcy.2014.09.040

Ruh, D., Reith, P., Sherman, S., Theodor, M., Ruhhammer, J., Seifert, A., & Zappe, H. (2014). Stretchable Optoelectronic Circuits Embedded in a Polymer Network. Advanced Materials, 26(11), 1706–1710. https://doi.org/10.1002/adma.201304447

Li, P., Pei, J., Pan, L., & Zappe, H. (2014). Fabrication method of low f-number microlens arrays by using surface coating and epoxy dispensing technology. Journal of Micro/Nanolithography, MEMS, and MOEMS, 13(2), 023004. https://doi.org/10.1117/1.jmm.13.2.023004

Theodor, M., Fiala, J., Ruh, D., Förster, K., Heilmann, C., Beyersdorf, F., Manoli, Y., Zappe, H., & Seifert, A. (2014). Implantable accelerometer system for the determination of blood pressure using reflected wave transit time. Sensors and Actuators A: Physical, 206, 151–158. https://doi.org/10.1016/j.sna.2013.12.006

Müller, P., Kopp, D., Llobera, A., & Zappe, H. (2014). Optofluidic router based on tunable liquid–liquid mirrors. Lab Chip, 14(4), 737–743. https://doi.org/10.1039/c3lc51148k

Meinert, T., Weber, N., Zappe, H., & Seifert, A. (2014). Varifocal MOEMS fiber scanner forconfocal endomicroscopy. Optics Express, 22(25), 31529–31544. https://doi.org/10.1364/OE.22.031529

Theodor, M., Ruh, D., Ocker, M., Spether, D., Förster, K., Heilmann, C., Beyersdorf, F., Zappe, H., Seifert, A., & Manoli, Y. (2014). Implantable impedance plethysmography. 14, 14858–14872. https://doi.org/10.3390/s140814858

Gutmann, J., Zappe, H., & Goldschmidt, J. C. (2013). Quantitative modeling of fluorescent emission in photonic crystals. Physical Review B, 88(20). https://doi.org/10.1103/physrevb.88.205118

Li, P., Pan, L., & Zappe, H. (2013b). Micro lens actuator and polymer objective lens for optical pickup. SPIE Proceedings, 8782, 87820W. https://doi.org/10.1117/12.2014720

Li, P., Pan, L., & Zappe, H. (2013a). A two-dimensional silicon-on-glass actuator with dispensed polymer microlens. The 8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 199–202. https://doi.org/10.1109/nems.2013.6559714

Zappe, H. (2013b). Technology and applications of optofluidics (Invited talk).

Zappe, H. (2013a). An optofluidic router (Invited talk).

Grewe, A., Enrödy, C., Fütterer, R., Cu-Nguyen, P.-H., Steiner, S., Hillenbrand, M., Correns, M., Hoffmann, M., Linß, G., Zappe, H., Seifert, A., Kley, E., & Sinzinger, S. (2013). Optische Mikrosysteme für die hyperspektrale Bildgebung. 139–142.

Förster, K., Theodor, M., Fiala, J., Ruh, D., Ruhhammer, J., Seifert, A., Heilmann, C., Zappe, H., & Beyersdorf, F. (2013). A novel implantable subcutaneous sensor for long term blood pressure and blood oxygen saturation measurement – first in vivo results. The Thoracic and Cardiovascular Surgeon, 61(S 01). https://doi.org/10.1055/s-0032-1332498

Cu-Nguyen, P.-H., Grewe, A., Sinzinger, S., Zappe, H., & Seifert, A. (2013). Tunable confocal hyperspectral imaging system. 2013 International Conference on Optical MEMS and Nanophotonics (OMN). https://doi.org/10.1109/omn.2013.6659033

Zhang, W., Zappe, H., & Seifert, A. (2013). Polyacrylate membranes for tunable liquid-filled microlenses. Optical Engineering, 52(4), 046601. https://doi.org/10.1117/1.oe.52.4.046601

Liebetraut, P., Waibel, P., Cu-Nguyen, P.-H., Reith, P., Aatz, B., & Zappe, H. (2013). Optical properties of liquids for fluidic optics. Applied Optics, 52(14), 3203. https://doi.org/10.1364/ao.52.003203

Liebetraut, P., Petsch, S., Liebeskind, J., & Zappe, H. (2013). Elastomeric lenses with tunable astigmatism. Light: Science and Applications, 2(9), e98.

Li, P., Pan, L., & Zappe, H. (2013). Two-dimensional silicon-on-glass actuator combined with a dispensed polymer microlens. Micro & Nano Letters, 8(10), 606–608. https://doi.org/10.1049/mnl.2013.0248

Schuhladen, S., Petsch, S., Liebetraut, P., Müller, P., & Zappe, H. (2013). Miniaturized tunable imaging system inspired by the human eye. Optics Letters, 38(20), 3991. https://doi.org/10.1364/ol.38.003991

Cu-Nguyen, P.-H., Grewe, A., Hillenbrand, M., Sinzinger, S., Seifert, A., & Zappe, H. (2013). Tunable hyperchromatic lens system for confocal hyperspectral sensing. Optics Express, 21(23), 27611. https://doi.org/10.1364/oe.21.027611

Gutmann, J., Zappe, H., & Goldschmidt, J. C. (2013). Publisher’s Note: Quantitative modeling of fluorescent emission in photonic crystals [Phys. Rev. B88, 205118 (2013)]. Physical Review B, 88(23). https://doi.org/10.1103/physrevb.88.239901

Zappe, H. (2013). Innovation: Bridging the market gap. Nature, 501(7468), 483–485. https://doi.org/10.1038/501483a

Theodor, M., Ruh, D., Förster, K., Heilmann, C., Beyersdorf, F., Zappe, H., & Seifert, A. (2013). Implantable acceleration plethysmography for blood pressure determination. Conference Proceedings of the IEEE Engineering in Medicine and Biology Society (EMBC), 2013, 4038–4041. https://doi.org/10.1109/embc.2013.6610431

Theodor, M., Fiala, J., Ruh, D., Förster, K., Heilmann, C., Beyersdorf, F., Zappe, H., & Seifert, A. (2013). Implantable accelerometer for determination of blood pressure. 2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII). https://doi.org/10.1109/transducers.2013.6627103

Theodor, M., Karakas, U., Ruh, D., Zappe, H., & Seifert, A. (2013). Lock-in amplification for implantable multiwavelength pulse oximeters. 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). https://doi.org/10.1109/embc.2013.6609545

Theodor, M., Ruh, D., Fiala, J., Förster, K., Heilmann, C., Manoli, Y., Beyersdorf, F., Zappe, H., & Seifert, A. (2013). Subcutaneous blood pressure monitoring with an implantable optical sensor. Biomedical Microdevices, 15(5), 811–820. https://doi.org/10.1007/s10544-013-9768-6

Weber, N., Zappe, H., & Seifert, A. (2013). Endoscopic optical probes for linear and rotational scanning. Technical Digest of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS 13). https://doi.org/10.1109/memsys.2013.6474433

Yu, Y., Chassaing, D., Scherer, T., Landenberger, B., & Zappe, H. (2013). The Focusing and Talbot Effect of Periodic Arrays of Metallic Nanoapertures in High-Index Medium. Plasmonics, 8(2), 723–732. https://doi.org/10.1007/s11468-012-9463-0

Fiala, J., Bingger, P., Ruh, D., Förster, K., Heilmann, C., Beyersdorf, F., Zappe, H., & Seifert, A. (2013). An implantable optical blood pressure sensor based on pulse transit time. Biomedical Microdevices, 15(1), 73–81. https://doi.org/10.1007/s10544-012-9689-9

Gutmann, J., Posdziech, J., Peters, I. M., Steidl, L., Zentel, R., Zappe, H., & Goldschmidt, J. C. (2012). Emission of Rhodamine B in PMMA opals for luminescent solar concentrators. SPIE Proceedings, 8438, 84381O. https://doi.org/10.1117/12.922681

Zappe, H. (2012). Tuning optics tuning liquids (Plenary talk).

Zappe, H. (2012b). MEMS for next-generation micro-optics (Keynote talk).

Zappe, H. (2012a). In vivo micro-optics (Plenary talk).

Ruh, D., Sherman, S., Theodor, M., Ruhhammer, J., Förster, K., Heilmann, C., Beyersdorf, F., Zappe, H., & Seifert, A. (2012). Determination of vessel wall dynamics by optical microsensors. Conference Proceedings of the IEEE Engineering in Medicine and Biology Society, 2012, 2359–2362. https://doi.org/10.1109/embc.2012.6346437

Weber, N., Hertkorn, D., Zappe, H., & Seifert, A. (2012). Polymer/Silicon Hard Magnetic Micromirrors. Journal of Microelectromechanical Systems, 21(5), 1098–1106. https://doi.org/10.1109/jmems.2012.2203100

Ruh, D., Sherman, S., Zappe, H., & Seifert, A. (2012). Optoelectronics on flexible substrates for biomedical applications. Technical Digest of the 2012 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics. https://doi.org/10.1109/omems.2012.6318865

Zhang, W., Zappe, H., & Seifert, A. (2012). Polyacrylate tunable microlens with on-chip thermopneumatic actuation. Technical Digest of the 2012 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics. https://doi.org/10.1109/omems.2012.6318800

Liebetraut, P., Petsch, S., & Zappe, H. (2012). A versatile fabrication process for reaction injection molded elastomeric micro-lenses. 2012 International Conference on Optical MEMS and Nanophotonics. https://doi.org/10.1109/omems.2012.6318860

Yu, Y., & Zappe, H. (2012). Theory and implementation of focal shift of plasmonic lenses. Optics Letters, 37(9), 1592. https://doi.org/10.1364/ol.37.001592

Zappe, H. (2012). Micro-optics: a micro-tutorial. Advanced Optical Technologies, 1(3). https://doi.org/10.1515/aot-2012-0016

Müller, P., Feuerstein, R., & Zappe, H. (2012). Integrated Optofluidic Iris. Journal of Microelectromechanical Systems, 21(5), 1156–1164. https://doi.org/10.1109/jmems.2012.2196498

Weber, N., Spether, D., Seifert, A., & Zappe, H. (2012). Highly compact imaging using Bessel beams generated by ultraminiaturized multi-micro-axicon systems. Journal of the Optical Society of America A, 29(5), 808. https://doi.org/10.1364/josaa.29.000808

Gutmann, J., Peters, I. M., Bläsi, B., Hermle, M., Gombert, A., Zappe, H., & Goldschmidt, J. C. (2012). Electromagnetic simulations of a photonic luminescent solar concentrator. Optics Express, 20(S2), A157. https://doi.org/10.1364/oe.20.00a157

Liebetraut, P., Liebeskind, J., Waibel, P., & Zappe, H. (2012). Elastomeric lenses with tunable astigmatism. Optics Express.

Weber, N., Zappe, H., & Seifert, A. (2012). An all-nickel magnetostatic MEMS scanner. Journal of Micromechanics and Microengineering, 22(12), 125008. https://doi.org/10.1088/0960-1317/22/12/125008

Weber, N., Zappe, H., & Seifert, A. (2012). A Tunable Optofluidic Silicon Optical Bench. Journal of Microelectromechanical Systems, 21(6), 1357–1364. https://doi.org/10.1109/jmems.2012.2206565

Müller, P., Feuerstein, R., & Zappe, H. (2012). A fully integrated optofluidic micro-iris. 2012 IEEE 25th International Conference on Micro Electro Mechanical Systems (MEMS). https://doi.org/10.1109/memsys.2012.6170080

Gutmann, J., Peters, I. M., Bläsi, B., Hermle, M., Zappe, H., & Goldschmidt, J. C. (2011). Towards photonic luminescent solar concentrators. SPIE Proceedings, 8111, 81110K. https://doi.org/10.1117/12.893104

Yu, Y., & Zappe, H. (2011). Robustness investigation of nanoslit-based plasmonic lenses. 16th International Conference on Optical MEMS and Nanophotonics, 213–214. https://doi.org/10.1109/omems.2011.6031096

Weber, N., Zappe, H., & Seifert, A. (2011). Optical micro-system with highly flexible tunability for endoscopic micro-probes. 16th International Conference on Optical MEMS and Nanophotonics, 51–52. https://doi.org/10.1109/omems.2011.6031045

Waibel, P., Mader, D., Liebetraut, P., Zappe, H., & Seifert, A. (2011). Tunable all-silicone multi-chamber achromatic microlens. 2011 IEEE 24th International Conference on Micro Electro Mechanical Systems, 728–731. https://doi.org/10.1109/memsys.2011.5734528

Zappe, H. (2011a). Clean photonics for environmental monitoring: not only the wavelengths are green (Invited talk).

Zappe, H. (2011b). Tunable micro- and nano-optics (Invited talk).

Müller, P., Kloss, A., Zappe, H., & Mönch, W. (2011). Optofluidic shutter driven by electrowetting. Proceedings of the EOS Conferences at the World of Photonics Congress 2011.

Müller, P., Kloss, A., Mönch, W., & Zappe, H. (2011). Bistable optofluidic attenuator with integrated electrowetting actuation and high dynamic range. 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference. https://doi.org/10.1109/transducers.2011.5969735

Müller, P., Kloss, A., Liebetraut, P., Mönch, W., & Zappe, H. (2011). A fully integrated optofluidic attenuator. Journal of Micromechanics and Microengineering, 21(12), 125027. https://doi.org/10.1088/0960-1317/21/12/125027

Liebetraut, P., Petsch, S., Mönch, W., & Zappe, H. (2011). Tunable solid-body elastomer lenses with electromagnetic actuation. Applied Optics, 50(19), 3268. https://doi.org/10.1364/ao.50.003268

Aljasem, K., Froehly, L., Seifert, A., & Zappe, H. (2011). Scanning and Tunable Micro-Optics for Endoscopic Optical Coherence Tomography. Journal of Microelectromechanical Systems, 20(6), 1462–1472. https://doi.org/10.1109/jmems.2011.2167656

Zhang, W., Aljasem, K., Zappe, H., & Seifert, A. (2011). Completely integrated, thermo-pneumatically tunable microlens. Optics Express, 19(3), 2347–2362. https://doi.org/10.1364/oe.19.002347

Yu, Y., & Zappe, H. (2011). Effect of lens size on the focusing performance of plasmonic lenses and suggestions for the design. Optics Express, 19(10), 9434–9444. https://doi.org/10.1364/OE.19.009434

Waibel, P., Mader, D., Zappe, H., & Seifert, A. (2011). Chromatic aberration control for tunable all-silicone membrane microlenses. Optics Express, 19(19), 18584–18592. https://doi.org/10.1364/OE.19.018584

Aljasem, K., Froehly, L., Zappe, H., & Seifert, A. (2010). Integrated three-dimensional scanner for endoscopic optical coherence tomography. SPIE Proceedings, 7716, 77162P. https://doi.org/10.1117/12.851644

Weber, N., Zappe, H., & Seifert, A. (2010). High-precision optical & fluidic micro-bench for endoscopic imaging. 2010 International Conference on Optical MEMS and Nanophotonics, 85–86. https://doi.org/10.1109/omems.2010.5672173

Waibel, P., Ermantraut, E., Mader, D., Zappe, H., & Seifert, A. (2010). Membrane-based aberration-corrected tunable micro-lenses. SPIE Proceedings, 7716, 77160E. https://doi.org/10.1117/12.853140

Zhang, W., Aljasem, K., Zappe, H., & Seifert, A. (2010). A fully integrated thermo-pneumatic tunable microlens. 2010 International Conference on Optical MEMS and Nanophotonics, 87–88. https://doi.org/10.1109/omems.2010.5672170

Muller, P., Spengler, N., Mönch, W., & Zappe, H. (2010). Tunable optofluidic micro-iris. 2010 International Conference on Optical MEMS and Nanophotonics, 13–14. https://doi.org/10.1109/omems.2010.5672209

Fiala, J., Bingger, P., Foerster, K., Heilmann, C., Beyersdorf, F., Zappe, H., & Seifert, A. (2010). Implantable sensor for blood pressure determination via pulse transit time. 2010 IEEE Sensors, 1226–1229. https://doi.org/10.1109/icsens.2010.5690619

Zappe, H. (2010b). Optical microsystems for new-generation biophotonics (Invited talk).

Zappe, H. (2010a). Implantable optical MEMS for medical diagnostics (Plenary talk).

Zappe, H. (2010). Fundamentals of micro-optics. Cambridge University Press.

Müller, P., Spengler, N., Mönch, W., & Zappe, H. (2010). Tunable optofluidic micro-iris. International Conference on Optical MEMS & Nanophotonics, 13–14.

Müller, P., Kloss, A., Zappe, H., & Mönch, W. (2010). Optofluidic apertures and shutters with the potential for an integrated electrowetting actuation. European Optical Society Annual Meeting 2010 : (EOSAM 2010).

Müller, P., Spengler, N., Zappe, H., & Mönch, W. (2010). An Optofluidic Concept for a Tunable Micro-iris. Journal of Microelectromechanical Systems, 19(6), 1477–1484. https://doi.org/10.1109/jmems.2010.2079917

Zhang, W., Aljasem, K., Zappe, H., & Seifert, A. (2010). Highly flexible MTF measurement system for tunable micro lenses. Optics Express, 18(12), 12458. https://doi.org/10.1364/oe.18.012458

Förster, K., Fiala, J., Theodor, M., Gehrke, R., Bingger, P., Seifert, A., Heilmann, C., Zappe, H., & Beyersdorf, F. (2010). A novel multiwavelength pulse oxymetry sensor for blood pressure measurements via pulse transit time – first in vivo results. Proceedings Der 76. Jahrestagung Der Deutschen Gesellschaft Für Kardiologie- Herz- Und Kreislaufforschung, DGK.

Förster, K., Bingger, P., Fiala, J., Gehrke, R., Theodor, M., Seifert, A., Heilmann, C., Woias, P., Zappe, H., & Beyersdorf, F. (2010). A new implantable pulse oximetry sensor – first long-term implantation in a domestic pig. The Thoracic and Cardiovascular Surgeon, 58(S 01). https://doi.org/10.1055/s-0029-1246674

Bingger, P., Fiala, J., Seifert, A., Weber, N., Förster, K., Heilmann, C., Beyersdorf, F., Woias, P., & Zappe, H. (2010). In vivo monitoring of blood oxygenation using an implantable MEMS-based sensor. 2010 IEEE 23rd International Conference on Micro Electro Mechanical Systems (MEMS). https://doi.org/10.1109/memsys.2010.5442385

Mader, D., Marhöfer, M., Waibel, P., Zappe, H., & Seifert, A. (2010). Tunable micro-fluidic multi-component micro-lens system with integrated actuator. 2010 IEEE 23rd International Conference on Micro Electro Mechanical Systems (MEMS). https://doi.org/10.1109/memsys.2010.5442285

Wang, Y., Mönch, W., Aatz, B., & Zappe, H. (2010). Tunable photonic crystals on a freestanding polymer membrane. Journal of Micromechanics and Microengineering, 20(1), 015003. https://doi.org/10.1088/0960-1317/20/1/015003

Zappe, H. (2009). Micro-optical medical monitoring. 2009 International Symposium on Micro-NanoMechatronics and Human Science, 7–11. https://doi.org/10.1109/mhs.2009.5352064

Zappe, H. (2009b). Tunable photonics for advanced medical diagnostics (Plenary talk).

Zappe, H. (2009a). Micro-optical medical monitoring (Plenary talk).

Aljasem, K., Seifert, A., & Zappe, H. (2009b). Tunable Scanning Fiber Optic MEMS-Probe for Endoscopic Optical Coherence Tomography. 2009 IEEE 22nd International Conference on Micro Electro Mechanical Systems. https://doi.org/10.1109/memsys.2009.4805555

Aljasem, K., Seifert, A., & Zappe, H. (2009a). OCT imaging with high lateral resolution using a dynamically focusing multi-lens system. Optical Coherence Tomography and Coherence Techniques IV. https://doi.org/10.1364/ecbo.2009.7372_1s

Fiala, J., Gehrke, R., Weber, N., Bingger, P., Zappe, H., & Seifert, A. (2009). Implantable optical sensor for continuous monitoring of various hemoglobin derivatives and tissue perfusion. 2009 IEEE Sensors. https://doi.org/10.1109/icsens.2009.5398324

Bingger, P., Fiala, J., Seifert, A., Weber, N., Moser, A., Goldschmidtböing, F., Förster, K., Heilmann, C., Beyersdorf, F., Woias, P., & Zappe, H. (2009). Implantable multi sensor system for in vivo monitoring of cardiovascular parameters. TRANSDUCERS 2009 – 2009 International Solid-State Sensors, Actuators and Microsystems Conference. https://doi.org/10.1109/sensor.2009.5285821

Zappe, H. (2009). Micro-optical medical monitoring. 2009 International Symposium on Micro-NanoMechatronics and Human Science.

Mader, D., Waibel, P., Seifert, A., & Zappe, H. (2009). Multichamber Tunable Liquid Microlenses with Active Aberration Correction. 2009 IEEE 22nd International Conference on Micro Electro Mechanical Systems. https://doi.org/10.1109/memsys.2009.4805552

Sawano, S., Naka, K., Werber, A., Zappe, H., & Konishi, S. (2008). Sealing method of PDMS as elastic material for MEMS. 2008 IEEE 21st International Conference on Micro Electro Mechanical Systems, 419–422. https://doi.org/10.1109/memsys.2008.4443682

Zappe, H. (2008b). New technologies for tunable micro-optics (Invited talk).

Zappe, H. (2008a). MEMS for micro-optics (Plenary talk).

Geerlings, E., Rattunde, M., Schmitz, J., Kaufel, G., Wagner, J., Bläsi, B., Kallweit, D., & Zappe, H. (2008). Widely Tunable Micro-Mechanical External-Cavity Diode Laser Emitting Around 2.1 [my]m. IEEE Journal of Quantum Electronics, 44(11), 1071–1075. https://doi.org/10.1109/jqe.2008.2001927

Friese, C., & Zappe, H. (2008). Deformable Polymer Adaptive Optical Mirrors. Journal of Microelectromechanical Systems, 17(1), 11–19. https://doi.org/10.1109/jmems.2007.913075

Zappe, H. (2008). Novel components for tunable micro-optics. Optoelectronics Letters, 4(2), 86–88. https://doi.org/10.1007/s11801-008-7113-8

Werber, A., & Zappe, H. (2008). Tunable Pneumatic Microoptics. Journal of Microelectromechanical Systems, 17(5), 1218–1227. https://doi.org/10.1109/jmems.2008.928712

Krogmann, F., Mönch, W., & Zappe, H. (2008). Electrowetting for Tunable Microoptics. Journal of Microelectromechanical Systems, 17(6), 1501–1512. https://doi.org/10.1109/jmems.2008.2007256

Aljasem, K., Seifert, A., & Zappe, H. (2008). Tunable multi-micro-lens system for high lateral resolution endoscopic optical coherence tomography. 2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics. https://doi.org/10.1109/omems.2008.4607820

Mader, D., Seifert, A., & Zappe, H. (2008). Fabrication of aberration-corrected tunable micro-lenses. 2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics. https://doi.org/10.1109/omems.2008.4607828

Mönch, W., Waibel, P., & Zappe, H. (2008). Bandgap tuning of photonic crystals by polymer swelling. 2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics. https://doi.org/10.1109/omems.2008.4607891

Waibel, P., Mader, D., Lammle, D., Seifert, A., & Zappe, H. (2008). Simulation and characterization of tunable achromatic micro-lenses. 2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics. https://doi.org/10.1109/omems.2008.4607845

Krogmann, F., Shaik, R. P., Lasinger, L., Mönch, W., & Zappe, H. (2008). Reconfigurable liquid micro-lenses with high positioning accuracy. Sensors and Actuators A: Physical, 143(1), 129–135. https://doi.org/10.1016/j.sna.2007.09.018

Shaik, R. P., Mönch, W., Krause, H., & Zappe, H. (2008). Reconfigurable liquid micro-lens system for variable fiber coupling. 2008 IEEE/LEOS International Conference on Optical MEMs and Nanophotonics. https://doi.org/10.1109/omems.2008.4607805

Aljasem, K., Werber, A., Seifert, A., & Zappe, H. (2008). Fiber optic tunable probe for endoscopic optical coherence tomography. Journal of Optics A: Pure and Applied Optics, 10(4), 044012. https://doi.org/10.1088/1464-4258/10/4/044012

Reichelt, S., Fiala, J., Werber, A., Förster, K., Heilmann, C., Klemm, R., & Zappe, H. (2008). Development of an Implantable Pulse Oximeter. IEEE Transactions on Biomedical Engineering, 55(2), 581–588. https://doi.org/10.1109/tbme.2007.902242

Krogmann, F., Qu, H., Mönch, W., & Zappe, H. (2008). Push/pull actuation using opto-electrowetting. Sensors and Actuators A: Physical, 141(2), 499–505. https://doi.org/10.1016/j.sna.2007.08.017

Fiala, J., Reichelt, S., Werber, A., Bingger, P., Zappe, H., Förster, K., Klemm, R., Heilmann, C., & Beyersdorf, F. (2007). Miniaturized pulse oximeter sensor for continuous vital parameter monitoring. Biophotonics 2007: Optics in Life Science, 6633_38. https://doi.org/10.1364/ecbo.2007.6633_38

Mönch, W., & Zappe, H. (2007). Biophotonics. In Comprehensive Microsystems (pp. 293–322). Elsevier.

Gianchandani, Y. B., Tabata, O., & Zappe, H. (2007). Comprehensive Microsystems. Elsevier.

Reichelt, S., & Zappe, H. (2007). Design of spherically corrected, achromatic variable-focus liquid lenses. Optics Express, 15(21), 14146. https://doi.org/10.1364/oe.15.014146

Krogmann, F., Mönch, W., Werber, A., & Zappe, H. (2007). Tunable Micro-fluidic Micro-lenses. In Encyclopedia of Materials: Science and Technology (pp. 1–8). Elsevier. https://doi.org/10.1016/b978-008043152-9.02177-1

Zappe, H., Gianchandani, Y. B., & Tabata, O. (2007). Biophotonics in: Comprehensive Microsystems. Elsevier.

Fiala, J., Reichelt, S., Werber, A., Bingger, P., Zappe, H., Förster, K., Klemm, R., Heilmann, C., & Beyersdorf, F. (2007). Miniaturized pulse oximeter sensor for continuous vital parameter monitoring. European Conference on Biomedical Optics$d17 – [21] June 2007, Munich, Germany, 6633 13. https://doi.org/10.1117/12.728216

Mönch, W., Shaik, R. P., Lasinger, L., Krogmann, F., & Zappe, H. (2007). Optical Characterization of Repositionable Liquid Micro-Lenses. TRANSDUCERS 2007 – 2007 International Solid-State Sensors, Actuators and Microsystems Conference. https://doi.org/10.1109/sensor.2007.4300697

Bingger, P., Fiala, J., Reichelt, S., Förster, K., Klemm, R., Heilmann, C., Goldschmidtböing, F., Beyersdorf, F., Woias, P., & Zappe, H. (2007). Kontinuierliche Langzeitüberwachung von Vitalparametern mittels eines implantierbaren Pulsoximeters. MikroSystemTechnik Kongress 2007 : 15. – 17. Oktober 2007 in Dresden ; Proceedings, 101–104.

Aljasem, K., Werber, A., & Zappe, H. (2007). Tunable Endoscopic MEMS-Probe for Optical Coherence Tomography. 2007 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics. https://doi.org/10.1109/omems.2007.4373813

Aljasem, K., Werber, A., Mader, D., Reichelt, S., & Zappe, H. (2007). Optical coherence tomography using a dynamically focusing tunable micro-lens. Optical Coherence Tomography and Coherence Techniques III : 17 – 19 June 2007, Munich, Germany, 13.1–13.9. https://doi.org/10.1117/12.727630

Aljasem, K., Werber, A., Reichelt, S., Mader, D., & Zappe, H. (2007). Pneumatically-Actuated Tunable Microlens for Endoscopic Optical Coherence Tomography. TRANSDUCERS 2007 – 2007 International Solid-State Sensors, Actuators and Microsystems Conference. https://doi.org/10.1109/sensor.2007.4300693

Geerlings, E., Rattunde, M., Schmitz, J., Kaufel, G., Wagner, J., Kallweit, D., & Zappe, H. (2007). Micro-mechanical external-cavity laser with wide tuning range. IEEE 20th International Conference on Micro Electro Mechanical Systems, 2007 : MEMS ; 21 – 25 Jan. 2007, Kobe, 731–734. https://doi.org/10.1109/memsys.2007.4433090

Werber, A., & Zappe, H. (2007). Thermo-pneumatically actuated piston mirror arrays. IEEE 20th International Conference on Micro Electro Mechanical Systems, 2007 : MEMS ; 21 – 25 Jan. 2007, Kobe, 703–706. https://doi.org/10.1109/memsys.2007.4432995

Glasenapp, C., Mönch, W., Krause, H., & Zappe, H. (2007). Biochip reader with dynamic holographic excitation and hyperspectral fluorescence detection. Journal of Biomedical Optics, 12(1), 014038. https://doi.org/10.1117/1.2437143

Friese, C., Werber, A., Krogmann, F., Mönch, W., & Zappe, H. (2007). Materials, effects and components for tunable micro-optics. IEEJ Transactions on Electrical and Electronic Engineering, 2(3), 232–248. https://doi.org/10.1002/tee.20138

Hohlfeld, D., & Zappe, H. (2007). Thermal and Optical Characterization of Silicon-Based Tunable Optical Thin-Film Filters. Journal of Microelectromechanical Systems, 16(3), 500–510. https://doi.org/10.1109/jmems.2007.895221

Shaik, R. P., Lasinger, L., Krogmann, F., Mönch, W., & Zappe, H. (2007). Fabrication and Characterization of a Repositionable Liquid Micro Lens System. 2007 IEEE/LEOS International Conference on Optical MEMS and Nanophotonics. https://doi.org/10.1109/omems.2007.4373879

Krogmann, F., Shaik, R. P., Mönch, W., & Zappe, H. (2007). Repositionable liquid micro-lenses with variable focal length. Proceedings / IEEE the Twentieth Annual International Conference on Micro Electro Mechanical Systems : [Kobe], Hyogo, Japan, 21 – 25 January 2007, 707–710. https://doi.org/10.1109/memsys.2007.4432996

Werber, A., Krogmann, F., Friese, C., Mönch, W., & Zappe, H. (2007). Tunable Micro-Optical Devices. IEEJ Transactions on Electrical and Electronic Engineering. IEEJ Transactions on Electrical and Electronic Engineering. (Invited Paper in Special Issue), Manuscript submitted.

Hohlfeld, D., & Zappe, H. (2006). Amorphous silicon as an active material in optical resonators. MRS Proceedings, 910, 1701. https://doi.org/10.1557/proc-0910-a17-01

Zappe, H. (2006). Tunable micro-optics (Plenary talk).

Reichelt, S., Werber, A., & Zappe, H. (2006). Implantable blood-oxygen sensor.

Zappe, H. (2006). Integrated micro-optics. In MEMS: A practical guide to design, analysis and applications (pp. 403–452). William Andrew.

Mönch, W., Donauer, J., Fischer, B. M., Frank, R., Gauglitz, G., Glasenapp, C., Helm, H., Hing, P., Hoffmann, M., Jepsen, P. U., Kleine-Ostmann, T., Koch, M., Krause, H., Leopold, N., Mutschler, T., Rutz, F., Sparna, T., & Zappe, H. (2006). Microarray Biochips – Thousands of Reactions on a Small Chip (MOBA). In Biophotonics (pp. 405–476). Wiley-VCH Verlag GmbH & Co. KGaA. https://doi.org/10.1002/3527608842.ch8

Zappe, H. (2006). Tunable micro-optics for optical MEMS. Proceedings of the European Optical Society Topical Meeting on Micro-Optics, Diffractive Optics and Optical MEMS, 44–45.

Werber, A., & Zappe, H. (2006c). Thermo-Pneumatically Actuated, Membrane-based Micro-Mirrors. IEEE/LEOS International Conference on Optical MEMS and Their Applications Conference, 2006. https://doi.org/10.1109/omems.2006.1708324

Geerlings, E., Rattunde, M., Schmitz, J., Kaufel, G., Zappe, H., & Wagner, J. (2006). Widely tunable GaSb-based external cavity diode laser emitting round 2.3[miu]m. IEEE Photonics Technology Letters, 18(18), 1913–1915. https://doi.org/10.1109/lpt.2006.881658

Werber, A., & Zappe, H. (2006). Pneumatically actuated, membrane-based optical devices. Proceedings IEEE 19th Annual International Conference on Micro Electro Mechanical Systems (MEMS) : Istanbul, 22 – 26 January 2006, 846–849.

Werber, A., & Zappe, H. (2006d). Tunable, membrane-based, pneumatic micro-mirrors. Journal of Optics A: Pure and Applied Optics, 8(7), S313–S317. https://doi.org/10.1088/1464-4258/8/7/s03

Werber, A., & Zappe, H. (2006b). Thermo-pneumatically actuated, membrane-based micro-mirror devices. Journal of Micromechanics and Microengineering, 16(12), 2524–2531. https://doi.org/10.1088/0960-1317/16/12/002

Mönch, W., Krogmann, F., & Zappe, H. (2006). Liquid micro-lenses with variable focal length. Photonic International, 105–107.

Krogmann, F., Qu, H., Mönch, W., & Zappe, H. (2006). Light-Actuated Push/Pull Manipulation of Liquid Droplets. IEEE/LEOS International Conference on Optical MEMS and Their Applications Conference, 2006. https://doi.org/10.1109/omems.2006.1708322

Krogmann, F., Mönch, W., Reichelt, S., & Zappe, H. (2006). Properties of a MEMS-based tunable lens system fabricated in all-silicon technology. Proceedings of the 5th International Meeting on Electrowetting, 20.

Mönch, W., Jaufmann, E., & Zappe, H. (2006). Polymer-Sensoren für Anwendungen in der optischen Messtechnik. Sensoren Und Messsysteme 2006 : Vorträge Der 13. ITG/GMA-Fachtagung Vom 13. Bis 14. März 2006 in Freiburg/Breisgau, 495–498.

Mönch, W., Dehnert, J., Jaufmann, E., & Zappe, H. (2006). Flory-Huggins swelling of polymer Bragg mirrors. Applied Physics Letters, 89(16), 164104. https://doi.org/10.1063/1.2358811

Krogmann, F., Mönch, W., & Zappe, H. (2006). A MEMS-based variable micro-lens system. Journal of Optics A: Pure and Applied Optics, 8(7), S330–S336. https://doi.org/10.1088/1464-4258/8/7/s06

Krause, H., Mönch, W., & Zappe, H. (2006). Replicated, high-aspect-ratio micro-optical components fabricated from inorganic solgel materials. Applied Optics, 45(20), 4843. https://doi.org/10.1364/ao.45.004843

Kallweit, D., Mönch, W., & Zappe, H. (2006). Kontrolliert kippen: Silizium-Mikrospiegel mit integriertem optischen Feedback. Photonik, Vol. 4, 62–65.

Geerlings, E., Rattunde, M., Schmitz, J., Kaufel, G., Wagner, J., Kallweit, D., & Zappe, H. (2006). GaSb-based Micro-Mechanical External-Cavity Laser Emitting around 2.3¿m. IEEE/LEOS International Conference on Optical MEMS and Their Applications Conference, 2006. https://doi.org/10.1109/omems.2006.1708242

Reichelt, S., Tiziani, H., & Zappe, H. (2006). Self-calibration of wavefront testing interferometers by use of diffractive elements. Interferometry XIII: Techniques and Analysis : 14 – 16 August 2006, San Diego, California, USA. https://doi.org/10.1117/12.680660

Friese, C., & Zappe, H. (2006). Fabrication and performance evaluation of a polymer membrane mirrorfor adaptive optical systems.

Kallweit, D., & Zappe, H. (2006). Fabrication of bulk-Si micromirrors with an integrated tilt sensing mechanism. Journal of Micromechanics and Microengineering, 16(2), 463–469. https://doi.org/10.1088/0960-1317/16/2/033

Mönch, W., Dehnert, J., Prucker, O., Rühe, J., & Zappe, H. (2006). Tunable Bragg filters based on polymer swelling. Applied Optics, 45(18), 4284. https://doi.org/10.1364/ao.45.004284

Mönch, W., Donauer, J., Fischer, B. M., Frank, R., Gauglitz, G., Glasenapp, C., Helm, H., Hing, P., Hoffmann, M. C., Jepsen, P. U., Kleine-Ostmann, T., Koch, M., Krause, H., Leopold, N., Mutschler, T., Rutz, F., Sparne, T., & Zappe, H. (2006). Biophotonics. Visions for Better Health Care. In Microarray Biochips – Thousands of Reactions on a Small Chip (MOBA) (pp. 405–476). Wiley-VCH.

Hohlfeld, D., Bechtold, T., & Zappe, H. (2005). Tunable optical filter. In Dimension reduction of large-scale systems (pp. 337–340). Springer. https://doi.org/10.1007/3-540-27909-1_15

Krogmann, F., Mönch, W., & Zappe, H. (2005). Control system for electrical movement of fluid drops with high resolution and low electrode count.

Hohlfeld, D., Bechtold, T., & Zappe, H. (2005). Tunable optical filter. Dimensional Reduction of Large Scale Systems : Proceedings of a Workshop Held in Oberwolfach, Germany, October 19 – 25, 2003 ; with 29 Tables, 335–338.

Werber, A., & Zappe, H. (2005b). Tunable, membrane-based, pneumatic micro-mirrors. IEEE/LEOS International Conference on Optical MEMS and Their Applications Conference, 2005. https://doi.org/10.1109/omems.2005.1540115

Werber, A., & Zappe, H. (2005a). Tunable, membrane-based, liquid-filled micro-lenses. The 13th International Conference on Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS ’05. https://doi.org/10.1109/sensor.2005.1496628

Krogmann, F., Mönch, W., & Zappe, H. (2005b). Tunable liquid micro-lens system. The 13th International Conference on Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS ’05. https://doi.org/10.1109/sensor.2005.1496627

Hohlfeld, D., & Zappe, H. (2005). Thermally tunable optical thin-film filters with sub-nanometer resolution and 41.7 nm continuous tuning range. 18th IEEE International Conference on Micro Electro Mechanical Systems, 2005. MEMS 2005. https://doi.org/10.1109/memsys.2005.1453877

Krogmann, F., Mönch, W., & Zappe, H. (2005a). Silicon-based tunable liquid lens system. IEEE/LEOS International Conference on Optical MEMS and Their Applications Conference, 2005. https://doi.org/10.1109/omems.2005.1540143

Mönch, W., Dehnert, J., & Zappe, H. (2005). Polymer Fabry-Pérot filters for organic solvent detection. DGaO-Proceedings.

Glasenapp, C., & Zappe, H. (2005b). Parallel-direct-greyscale-writer for micro optics and microstructures. DGaO-Proceedings.

Reichelt, S., Bieber, A., Aatz, B., & Zappe, H. (2005). Micro-optics metrology using advanced interferometry. Proceedings of SPIE, 437–446. https://doi.org/10.1117/12.612584

Friese, C., & Zappe, H. (2005). Micro-membrane mirrors fabricated by full-wafer SU-8 bonding. Proceedings of Transducers 2005, 1342–1345.

Glasenapp, C., & Zappe, H. (2005a). Microarray-scanner for flexible, parallel, and hyperspectral fluorescence detection. DGaO-Proceedings.

Zappe, H., & Reichelt, S. (2005). Mach-Zehnder / Twyman-Green hybrid interferometer for micro-lens testing. DGaO-Proceedings.

Bechtold, T., Hohlfeld, D., Rudnyi, E. B., Zappe, H., & Korvink, J. G. (2005). Inverse thermal problem via model order reduction: determining material properaties of a microhotplate. Proceedings of the International Workshop on Thermal Investigations of ICs and Systems (Therminic05), 146–150.

Krogmann, F., & Zappe, H. (2005). Adaptive micro-lenses based on electro-wetting. DGaO-Proceedings.

Werber, A., & Zappe, H. (2005). Tunable microfluidic microlenses. Applied Optics, 44(16), 3238. https://doi.org/10.1364/ao.44.003238

Reichelt, S., & Zappe, H. (2005). Combined Twyman–Green and Mach–Zehnder interferometer for microlens testing. Applied Optics, 44(27), 5786. https://doi.org/10.1364/ao.44.005786

Mönch, W., Dehnert, J., & Zappe, H. (2004). Tunable polymer Fabry-Perot filters. 17th IEEE International Conference on Micro Electro Mechanical Systems : Maastricht : MEMS 2004 Technical Digest : January 25-29, 2004.

Kallweit, D., & Zappe, H. (2004). Optical position sensing and feedback control for tilting micro-mirrors. 17th IEEE International Conference on Micro Electro Mechanical Systems : Maastricht : MEMS 2004 Technical Digest : January 25-29, 2004, 48–49.

Friese, C., & Zappe, H. (2004). Micro-mirror arrays for adaptive optics fabricated in polymer technology. The 13th International Conference on Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS ’05. https://doi.org/10.1109/sensor.2005.1497329

Hohlfeld, D., & Zappe, H. (2004). A MEMS-based all-dielectric tunable optical filter with increased tuning range. MEMS, MOEMS, and Micromachining : 29 – 30 April 2004, Strasbourg, France, 228–239. https://doi.org/10.1117/12.545346

Mönch, W., & Zappe, H. (2004). Fabrication and testing of micro-lens arrays by all-liquid techniques. Journal of Optics A: Pure and Applied Optics, 6(4), 330–337. https://doi.org/10.1088/1464-4258/6/4/007

Hohlfeld, D., & Zappe, H. (2004). An all-dielectric tunable optical filter based on the thermo-optic effect. Journal of Optics A: Pure and Applied Optics, 6(6), 504–511. https://doi.org/10.1088/1464-4258/6/6/002

Zappe, H. (2004). Laser diode microsystems. Springer-Verlag.

Zappe, H. (2003). An overview of European approaches to MST education (Invited talk).

Werber, A., & Zappe, H. (2003). Endoscope with balloon attachment fabricated by microtechnology for visualization in blood.

Kallweit, D., & Zappe, H. (2003). System for optical determination of tilt angles using structured surfaces.

Hohlfeld, D., Epmeier, M., & Zappe, H. (2003). Thermally tunable optical filter array. Optical Devices for Fiber Communication IV, 143–154. https://doi.org/10.1117/12.479820

Friese, C., Wissmann, M., & Zappe, H. (2003). Polymer-based membrane mirrors for micro-optical sensors. Proceedings of IEEE Sensors 2003 (IEEE Cat. No.03CH37498). https://doi.org/10.1109/icsens.2003.1279022

Hohlfeld, D., & Zappe, H. (2003). Micro-machined tunable optical filters with optimized band-pass spectrum. TRANSDUCERS ’03. 12th International Conference on Solid-State Sensors, Actuators and Microsystems. Digest of Technical Papers (Cat. No.03TH8664). https://doi.org/10.1109/sensor.2003.1217060

Hohfeld, D., & Zappe, H. (2003). Hybrid optical assembly technique for tunable optical filter arrays. 2003 IEEE/LEOS International Conference on Optical MEMS (Cat. No.03EX682). https://doi.org/10.1109/omems.2003.1233455

Zimmer, F., Mönch, W., & Zappe, H. (2003). Constructing optical microsystems based on the hydrophobic effect: comparison of microlens arrays fabricated by different methods. 2003 IEEE/LEOS International Conference on Optical MEMS (Cat. No.03EX682). https://doi.org/10.1109/omems.2003.1233471

Hohlfeld, D., Epmeier, M., & Zappe, H. (2003). A thermally tunable, silicon-based optical filter. Sensors and Actuators A: Physical, 103(1-2), 93–99. https://doi.org/10.1016/s0924-4247(02)00320-5

Monti di Sopra, F., Gauggel, H.-P., Brunner, M., Hövel, R., Moser, M., & Zappe, H. (2001). Long-term spectral stability of singlemode VCSELs. Electronics Letters, 37(13), 832. https://doi.org/10.1049/el:20010561

Menz, W., Paul, O., Rühe, J., & Zappe, H. (2001). Material considerations for micromachine technology.

Verschaffelt, G., Albert, J., Peeters, M., Panajotov, K. P., Danckaert, J., Veretennicoff, I. P., Thienpont, H., Monti di Sopra, F., Eitel, S., Hövel, R., Moser, M., Zappe, H., & Gulden, K. H. (2000). Polarization switching and modulation dynamics in gain- and index-guided VCSELs. SPIE Proceedings, 3946, 246–257. https://doi.org/10.1117/12.384382

Zappe, H., Monti di Sopra, F., Gauggel, H.-P., Gulden, K., Hövel, R., & Moser, M. (2000). High spectral-purity VCSELs for spectroscopy and sensors (Invited talk).

Zappe, H. (2000). VCLs for industrial sensing (Invited talk).

Zappe, H., Hess, M., Moser, M., Hövel, R., Gulden, K., Gauggel, H.-P., & Monti di Sopra, F. (2000). Narrow-linewidth vertical-cavity surface-emitting lasers for oxygen detection. Applied Optics, 39(15), 2475. https://doi.org/10.1364/ao.39.002475

Monti di Sopra, F., Brunner, M., Gauggel, H.-P., Zappe, H., Moser, M., Hövel, R., & Kapon, E. (2000). Continuous-wave operation of phase-coupled vertical-cavity surface-emitting laser arrays. Applied Physics Letters, 77(15), 2283–2285. https://doi.org/10.1063/1.1316772