Light-induced instabilities in photo-oriented liquid crystal cells

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In a planar liquid crystal sample sandwiched between a photosensitive and a reference plate instabilities occurred, when the cell was illuminated from the reference side. The instabilities were induced both by polarized white light source and monochromatic laser beams. Static and dynamic regimes were found; for laser irradiation dynamic instability was found only in a range of polarization directions. A model, developed for monochromatic excitation, predicts that at certain thicknesses dynamic instability is forbidden. Experiments on a wedge-like cell confirmed this conclusion.

Original languageEnglish
Pages (from-to)92-99
Number of pages8
JournalMolecular Crystals and Liquid Crystals
Volume594
Issue number1
DOIs
Publication statusPublished - May 3 2014

Fingerprint

Liquid Crystals
Liquid crystals
liquid crystals
cells
Laser beam effects
wedges
Laser beams
Light sources
light sources
laser beams
Polarization
irradiation
polarization
excitation
lasers
Experiments

Keywords

  • light-induced phenomena
  • pattern formation
  • Photoorientation

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Science(all)

Cite this

Light-induced instabilities in photo-oriented liquid crystal cells. / Jánossy, I.; Fodor-Csorba, K.; Vajda, A.; Palomares, L. O.; Tóth-Katona, T.

In: Molecular Crystals and Liquid Crystals, Vol. 594, No. 1, 03.05.2014, p. 92-99.

Research output: Contribution to journalArticle

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