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P‐151: Giant Flexoelectro‐Optic Effect with Bimesogen in Vertical Standing Helix
Author(s) -
Joshi Vinay,
Chang Kai-Han,
Varanytsia Andrii,
Paterson Daniel A.,
Storey John. M.D.,
Imrie Corrie T.,
Chien Liang-Chy
Publication year - 2018
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.12376
Subject(s) - helix (gastropod) , optics , contrast ratio , rotation (mathematics) , materials science , optical rotation , physics , geometry , mathematics , biology , snail , ecology
We demonstrate a giant flexoelectro‐optic response characterized by an out‐of‐plane helical axis rotation of 53° in polymer‐stabilized cholesteric doped with bimesogen. The presented electro‐optic device measures a large flexoelastic ratio (e/K) of 2.758 CN −1 m −1 with a contrast ratio of 500:1 and response time of 0.43 ms.