Photochromic chiral liquid-crystalline mixed formulations: A new class of materials for data recording and storage

Autor:	A. Yu. Bobrovski, V. P. Shibaev, N.I. Boiko
Rok vydání:	1999
Předmět:	chemistry.chemical_classification Materials science Photoisomerization Dopant Applied Mathematics General Engineering Infrared spectroscopy Polymer Atomic and Molecular Physics and Optics Computational Mathematics Photochromism chemistry Chemical engineering Phase (matter) Copolymer Isomerization
Zdroj:	Journal of Optical Technology. 66:574
ISSN:	1070-9762
DOI:	10.1364/jot.66.000574
Popis:	~Submitted December 6, 1998!Opticheski”Zhurnal 66, 136–140 ~June 1999!This paper describes the phase behavior and optical properties of the mixed formulation of achiral 1-menthanone derivative as a photosensitive dopant and a cholesteric copolymer. It is shownthat the exposure of the planar-oriented films of the mixture to UV radiation considerablydecreases the wavelength of the selective reflection maximum owing to the E-Z isomerization ofthe dopant. The kinetics of photoisomerization of the cholesteric films of the mixture ismeasured at various temperatures. The mixed formulation prepared is a unique promising mediumfor colored data recording and storage. © 1999 The Optical Society of America.@S1070-9762~99!02106-5#
Databáze:	OpenAIRE
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