Abstract
The diffraction properties of liquid crystal (LC) cells fabricated by photoalignment substrates with different periodic optical anisotropic distributions are demonstrated. The twist angle distribution structure inside the LC cells formed by the grating period difference between photoalignment substrates is called “beat structure.” In addition to diffraction corresponding to the grating periods of photoalignment substrates, beat structure itself also functions as a diffraction grating. The diffraction properties can be controlled by varying the retardation. The fabrication method and diffraction properties of the LC cells with beat structure are explained by both experiment and theoretical analysis.
© 2019 Optical Society of America
Full Article | PDF ArticleMore Like This
Kotaro Kawai, Tomoyuki Sasaki, Kohei Noda, Moritsugu Sakamoto, Nobuhiro Kawatsuki, and Hiroshi Ono
Appl. Opt. 54(19) 6010-6018 (2015)
Kotaro Kawai, Tomoyuki Sasaki, Kohei Noda, Nobuhiro Kawatsuki, and Hiroshi Ono
Appl. Opt. 53(17) 3679-3686 (2014)
Kotaro Kawai, Tomoyuki Sasaki, Moritsugu Sakamoto, Kohei Noda, Nobuhiro Kawatsuki, and Hiroshi Ono
J. Opt. Soc. Am. B 32(12) 2435-2440 (2015)