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12 September 2013 Electro-optical properties of nematic liquid crystal cells in the infrared wavelength region
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Abstract
We study the electro-optical properties of the nematic liquid crystal (LC) cells such as a homogenously aligned nematic LC cell and twisted nematic (TN) LC cell fabricated with polished silicon wafers in a far-infrared wavelength region. The birefringence of the nematic LC material at the wavelength of about 10 μm is estimated by applying a voltage to the homogenously aligned LC cell under crossed infrared-wire-grid polarizers. The application of the TN LC cell into an optical shutter in the far-infrared region for electrically controlling the transmitted light intensity is demonstrated and discussed.
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Marenori Kawamura and Susumu Sato "Electro-optical properties of nematic liquid crystal cells in the infrared wavelength region", Proc. SPIE 8828, Liquid Crystals XVII, 88281A (12 September 2013); https://doi.org/10.1117/12.2023799
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