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

The effect of trans-cis photoisomerisation of azofragments of a polymer film on the molecular reorientation of a liquid crystal is studied. It is shown that, using nanosecond laser pulses, one can perform both the reversible and static data recording in liquid-crystal cells with an azo-modified surface. The rise time of the reorientation is measured by the methods of dynamic holography to be about {approx} 30 {mu}s, and the grating efficiency achieves 15 %. (laser applications and other topics in quantum electronics)
Authors:
;  [1] ;  [2]
  1. Institute of Electronics, National Academy of Sciences of Belarus (Belarus)
  2. Department of Physics, T.G. Shevchenko Kiev National University, Kiev (Ukraine)
Publication Date:
OSTI Identifier:
21454718
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 31; Journal Issue: 3; Other Information: DOI: 10.1070/QE2001v031n03ABEH001931
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GRAIN ORIENTATION; GRATINGS; HOLOGRAPHY; LASERS; LIQUID CRYSTALS; POLYMERS; PULSE RISE TIME; PULSES; SURFACES; THIN FILMS CRYSTALS; FILMS; FLUIDS; LIQUIDS; MICROSTRUCTURE; ORIENTATION; TIMING PROPERTIES