1 December 1981 Liquid Crystal Infrared Modulation
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Abstract
Experimental liquid crystal 8 to 12 Am infrared modulators have been fabricated and operated utilizing the cholesteric-nematic phase change effect occurring with cyanobiphenyl liquid crystals. A one-mil-thick film of 4-cyano-4'-pentyl-biphenyl has an average transmission over the whole 8 to 12 Am region of =87%. Experiments to determine modulator response times and contrast are discussed as well as some of the basic limitations of infrared modulation using liquid crystals.
J. G. Pasko, J. G. Pasko, J. Tracy, J. Tracy, W. Elser, W. Elser, } "Liquid Crystal Infrared Modulation," Optical Engineering 20(6), 206970 (1 December 1981). https://doi.org/10.1117/12.7972844 . Submission:
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