Accession Number : AD1040376


Title :   Blue-Shifting Tuning of the Selective Reflection of Polymer Stabilized Cholesteric Liquid Crystals (Postprint)


Descriptive Note : Journal Article - Open Access


Corporate Author : Azimuth Corporation Beavercreek United States


Personal Author(s) : Lee,Kyung M ; Tondiglia,Vincent P ; Godman,Nicholas P ; Middleton,Claire M ; White,Timothy J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1040376.pdf


Report Date : 08 Aug 2017


Pagination or Media Count : 9


Abstract : We report on electrically-induced, large magnitude (4300 nm), and reversible tuning of the selective reflection in polymer stabilized cholesteric liquid crystals (PSCLCs) prepared from negative dielectric anisotropy nematic liquid crystal hosts. The electrically-induced blue shift in the selective reflection of the PSCLCs is distinguished from our prior reports of bandwidth broadening and red-shifting tuning of the selective reflection in PSCLCs. The dominant factor in delineating the electro-optic response of the PSCLCs detailed here are the preparation conditions. Specifically, long exposure to UV intensity exceeding 250 mW cm-2. Other factors are shown to contribute to the response, including the type and concentration of photoinitiator.


Descriptors :   optical properties , liquid crystals , bandwidth , anisotropy , chemistry


Subject Categories : Crystallography


Distribution Statement : APPROVED FOR PUBLIC RELEASE