11 April 1997 Photomodulating the spontaneous polarization of a ferroelectric liquid crystal phase using chiral thioindigo dopants
Author Affiliations +
Abstract
The chiral thioindigo dye (R,R)-5,5'-dinitro-6,6'-bis(2- octyloxy)thioindigo has been synthesized in optically active form and doped into a racemic SC liquid crystal host (xd equals 0.028) to induce a ferroelectric SC* phase. Irradiation of an aligned sample of this induced SC* phase at (lambda) greater than 450 nm produces a cis- enriched photostationary state of the dopant, and an increase in the spontaneous polarization of the SC* phase by a factor of 1.8. This modulation is reversible via thermal relaxation of the dopant to the trans-form.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Liviu Dinescu, Liviu Dinescu, Robert P. Lemieux, Robert P. Lemieux, } "Photomodulating the spontaneous polarization of a ferroelectric liquid crystal phase using chiral thioindigo dopants", Proc. SPIE 3015, Liquid Crystal Materials, Devices, and Applications V, (11 April 1997); doi: 10.1117/12.271398; https://doi.org/10.1117/12.271398
PROCEEDINGS
5 PAGES


SHARE
Back to Top