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P‐147: The effect of ultraviolet polarization direction and temperature on the retardation dispersion of a self‐organized smectic reactive mesogen film
Author(s) -
Choi Ho-Jin,
Jeong Jinyoung,
Lee Ji-Hoon
Publication year - 2019
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.13300
Subject(s) - photopolymer , mesogen , ultraviolet , materials science , uv curing , polarization (electrochemistry) , ultraviolet light , dispersion (optics) , refractive index , curing (chemistry) , optics , liquid crystal , optoelectronics , composite material , chemistry , liquid crystalline , polymerization , polymer , physics
In this study, we investigated the effect of ultraviolet (UV) polarization direction and UV curing temperature on the retardation dispersion during photopolymerization of a self‐assembly smectic reactive mesogen (RM) compound. The RM retarder film fabricated with unpolarized UV light showed a positive dispersion (PD) of retardation. Also the film that was photopolymerized with UV light linearly polarized orthogonal to the layer plane showed a non‐uniform negative dispersion (ND). On the other hand, the film photopolymerized with UV light linearly polarized parallel to the layer plane showed a ND of retardation with decreasing UV‐photopolymerization temperatures.