Phase Modulation of Broadband Light Using Liquid-Crystal-on-Silicon Spatial Light Modulator
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概要
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The influence of the illumination bandwidth on phase modulation using a liquid-crystal-on-silicon (LCOS) spatial light modulator (SLM) was evaluated. The maximum phase modulation for different wavelengths was determined using a Michelson interferometer. Phase modulation of the LCOS SLM exhibited good linearity for broadband light as well as light with a narrow bandwidth. Point spread functions (PSFs) formed via the LCOS SLM were measured for broadband illumination. Although PSF distribution expanded for the broader bandwidth, the full width at half-maximum (FWHM) of the center peak of the PSF remained the same for different bandwidths. Because of the preserved FWHM of the PSF, the resolution of imaging using the LCOS SLM was not influenced by the broadening of illumination bandwidth, but the expanded distribution contributed to the degradation of image contrast.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2011-06-25
著者
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Shirai Tomohiro
Photonics Research Institute National Institute Of Advanced Industrial Science And Technology
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Shirai Tomohiro
Photonics Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8564, Japan
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Takeno Kohei
Photonics Research Institute, National Institute of Advanced Industrial Science and Technology, 1-2-1 Namiki, Tsukuba, Ibaraki 305-8564, Japan
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Takeno Kohei
Photonics Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8564, Japan
関連論文
- Capability of a Liquid-Crystal Adaptive Optics System Based on Feedback Interferometry for Retinal Imaging
- Modification of Spatial Coherence by Means of Low-Order Zernike-Mode Adaptive Optics
- Adaptive Optics as a Spatial Coherence Modifier
- Adaptive Optics with a Liquid-Crystal-on-Silicon Spatial Light Modulator and Its Behavior in Retinal Imaging
- Phase Modulation of Broadband Light Using Liquid-Crystal-on-Silicon Spatial Light Modulator