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

Journal Article · Sat Mar 31 00:00:00 EST 2001 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2001V031N03ABEH001931· OSTI ID:21454718

Serak, S V; Agashkov, A V ^[1]; Reshetnyak, V Yu ^[2]

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1. Institute of Electronics, National Academy of Sciences of Belarus (Belarus)
2. Department of Physics, T.G. Shevchenko Kiev National University, Kiev (Ukraine)

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)

• OSTI ID: 21454718
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 31, Issue 3; Other Information: DOI: 10.1070/QE2001v031n03ABEH001931; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

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