Optical data recording by laser pulses in liquid-crystal cells with an azo-modified surface

Authors
Serak, SV Agashkov, AV Reshetnyak, VY
Citation
Sv. Serak et al., Optical data recording by laser pulses in liquid-crystal cells with an azo-modified surface, QUANTUM EL, 31(3), 2001, pp. 273-278
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
QUANTUM ELECTRONICS
ISSN journal
10637818 → ACNP
Volume
31
Issue
3
Year of publication
2001
Pages
273 - 278
Database
ISI
SICI code
1063-7818(200103)31:3<273:ODRBLP>2.0.ZU;2-X
Abstract
The effect of trans-cis photoisomerisation of azo-fragments of a polymer fi lm on the molecular reorientation of a liquid crystal is studied. It is sho wn that, using nanosecond laser pulses, one can perform both the reversible and static data recording in liquid-crystal cells with an ate-modified sur face. The rise time of the reorientation is measured by the methods of dyna mic holography to be about similar to 30 mus, and the grating efficiency ac hieves 15%.