TITLE

Formation of binary phase gratings in photopolymer-liquid crystal composites by a surface-controlled anisotropic phase separation

AUTHOR(S)
Park, Jae-Hong; Khoo, Iam Choon; Yu, Chang-Jae; Jung, Min-Sik; Lee, Sin-Doo
PUB. DATE
January 2005
SOURCE
Applied Physics Letters;1/10/2005, Vol. 86 Issue 2, p021906
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on formation of binary phase gratings in photopolymer-liquid crystal (PLC) composites using a surface-controlled phase separation method. The binary nature of the PLC phase gratings is produced by employing a single step photo-ablation through an amplitude photomask which precisely controls the interfacial interactions between the LC and the photopolymer on the alignment layer. A subsequent illumination of the ultraviolet light onto the whole PLC promotes an anisotropic phase separation resulting in the formation of distinct binary patterns for the PLC structure. The electrically tunable diffraction properties of the binary phase gratings are presented.
ACCESSION #
15644141

 

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