Photoisomerization of azo-dyes in nematic liquid crystals

I. Jánossy, Lilla Szabados

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The photoisomerization of azo dyes in nematic liquid crystals is investigated. Using a pump-probe technique, the absorption coefficients of the trans and cis isomers are evaluated separately and the dye order parameters of both forms are determined. It is shown that as a consequence of the difference of the trans and cis orientational order, the trans-cis equilibrium can be controlled through the polarization direction of the pump beam.

Original languageEnglish
Pages (from-to)539-551
Number of pages13
JournalJournal of Nonlinear Optical Physics and Materials
Volume7
Issue number4
Publication statusPublished - Dec 1998

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Azo Compounds
Photoisomerization
Azo dyes
Nematic liquid crystals
dyes
liquid crystals
Pumps
pumps
Isomers
absorptivity
Coloring Agents
isomers
Dyes
Polarization
probes
polarization

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy (miscellaneous)
  • Atomic and Molecular Physics, and Optics

Cite this

Photoisomerization of azo-dyes in nematic liquid crystals. / Jánossy, I.; Szabados, Lilla.

In: Journal of Nonlinear Optical Physics and Materials, Vol. 7, No. 4, 12.1998, p. 539-551.

Research output: Contribution to journalArticle

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