Orientational optical nonlinearity induced by comb-shaped polymers in a nematic liquid crystal

The effect of optical orientation in nematic liquid crystals containing small additions of high-molecular compounds, i.e., comb-shaped polymers with light-absorbing azobenzene side fragments, was studied. The effects of light-induced reorientation of the director of nematic liquid crystals caused by...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2008-01, Vol.106 (1), p.172-181
Main Authors: Budagovsky, I. A., Zolot’ko, A. S., Ochkin, V. N., Smayev, M. P., Bobrovsky, A. Yu, Shibaev, V. P., Barnik, M. I.
Format: Article
Language:English
Subjects:
ABSORPTION
Classical and Quantum Gravitation
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Elementary Particles
LIQUID CRYSTALS
Nonlinear
NONLINEAR PROBLEMS
ORGANIC POLYMERS
ORIENTATION
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Soft Matter Physics
Solid State Physics
Statistical
VISIBLE RADIATION
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Summary:The effect of optical orientation in nematic liquid crystals containing small additions of high-molecular compounds, i.e., comb-shaped polymers with light-absorbing azobenzene side fragments, was studied. The effects of light-induced reorientation of the director of nematic liquid crystals caused by light absorption of polymers and a low-molecular compound with a structure similar to side fragments of the polymers were compared in detail. An explanation was proposed for large values of the orientational nonlinearity induced by polymers.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776108010159