Light-induced macroscopic chirality in azo-dye-doped polymers

Authors
Birabassov, R Galstian, TV
Citation
R. Birabassov et Tv. Galstian, Light-induced macroscopic chirality in azo-dye-doped polymers, J OPT SOC B, 18(10), 2001, pp. 1469-1473
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
ISSN journal
07403224 → ACNP
Volume
18
Issue
10
Year of publication
2001
Pages
1469 - 1473
Database
ISI
SICI code
0740-3224(200110)18:10<1469:LMCIAP>2.0.ZU;2-N
Abstract
Light-induced macroscopic chirality in a nonchiral azo-dye-doped polymer fi lm is reported. A helicoidal standing wave was used to achieve a twisted mo lecular organization. Polarization properties of obtained helicoidal Bragg gratings are similar to cholesteric liquid crystals, where the response of the system is different for left and right circularly polarized light. A th eoretical analysis with coupled-wave equations is done. (C) 2001 Optical So ciety of America.