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[IEEE 2019 International Conference on Optical MEMS and Nanophotonics (OMN) - Daejeon, Korea (South) (2019.7.28-2019.8.1)] 2019 International Conference on Optical MEMS and Nanophotonics (OMN) - Micro-optical system for depth-controlled Bessel beam arrays
摘要： We present an integrated, compact micro-optical system capable to generate depth-controlled Bessel beams by integrating a miniaturized adaptive liquid crystal ring aperture array with a micro-lens array, a lensacon, which is a combination of a lens and an axicon. We were able to successfully demonstrate a functional system that is able to generate and control Bessel beams.
关键词： micro-lens arrays,Bessel beam,micro-optical system,aspherical lenses,ring aperture,liquid crystal
更新于2025-09-16 10:30:52
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Ultra-fast adaptive optical micro-lens arrays based on stressed liquid crystals
摘要： We characterized the optical properties of a photoresist-based micro-lens using a stressed liquid crystal matrix for high-speed variation of the focal distance. We also determined the operational parameters for the adaptive optical spherical and cylindrical micro-lens arrays. The resulting optical elements feature fast response times, around 1 ms, with a focal length range of 2600-970 μm.
关键词： stressed liquid crystals,adaptive optical micro-lens arrays,focal length variation,fast response times
更新于2025-09-09 09:28:46