標題: Formation of phase grating in planar aligned cholesteric liquid crystal film
作者: Wu, JJ
Wu, YS
Chen, FC
Chen, SH
光電工程學系
Department of Photonics
關鍵字: cholesteric liquid crystal;fingerprint;planar parallel alignment;antiparallel alignment;pretilt
公開日期: 15-Nov-2002
摘要: Electric-field-induced cholesteric liquid crystal phase gratings were investigated by means of changing the film thickness-to-natural-pitch ratio d/p(0) and the applied voltage. Planar parallel (180degrees)-, antiparallel (0degrees)- and twist (90degrees)-aligned films were fabricated. By varying the d/p(0) value, we found that the stripes of the gratings could only be in two directions. It was interesting that the directions were mutually perpendicular. This device could be used as a grating switch.
URI: http://dx.doi.org/10.1143/JJAP.41.L1318
http://hdl.handle.net/11536/28382
ISSN: 0021-4922
DOI: 10.1143/JJAP.41.L1318
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS
Volume: 41
Issue: 11B
起始頁: L1318
結束頁: L1320
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