Permanent photoalignment of liquid crystals on nanostructured chalcogenide glassy thin films

Miri Gelbaor, Matvey Klebanov, Victor Lyubin, I. Abdulhalim

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Photoalignment of nematic liquid crystals is obtained on the chalcogenide glassy thin film of As2 S3 using irradiation with polarized blue light. A uniform homogeneously aligned device is obtained with high contrast and strong anchoring. The device alignment quality is permanent as checked by following its functionality over a period of few months. The origin of the observed photoalignment is attributed to the photoinduced anisotropy in chalcogenide glasses. No differences between the different As2 S 3 film thicknesses observed, thus supporting the proposition that some orientational order is photoinduced on the surface of the glass and responsible for the photoalignment.

Original languageEnglish
Article number071909
JournalApplied Physics Letters
Issue number7
StatePublished - 14 Feb 2011


  • Glass
  • Amorphous materials
  • Thin films
  • Display devices
  • Geometrical optics
  • Interferometry
  • Liquid crystals
  • Optical interference
  • Optical properties
  • Chemical Bonding

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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