Photoinduced generation and reorientation of linear dichroism in AsSe glassy films

V. Lyubin, M. Klebanov

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

The kinetics of linear dichroism generation and reorientation in glassy AsSe films induced by linearly polarized He-Ne laser light of different intensities is studied by means of a polarization-modulation technique. Two distinct processes are identified: creation of photoinduced defects and their photostimulated orientation and reorientation. The first process can be carried out by both unpolarized and polarized light and has a much larger time constant than the second one. The annealing temperatures of the two effects are also shown to be different. Comparison of restoration of the initial dichroism-generation kinetics after annealing with the photodarkened AsSe film thermobleaching leads to a conclusion about certain identity of the defects responsible for the photodarkening and photoinduced anisotropy phenomena. Tikhomirov and Elliottșs model of photoinduced anisotropy in chalcogenide glasses is further developed.

Original languageEnglish
Pages (from-to)R11924-R11926
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume53
Issue number18
DOIs
StatePublished - 1 Jan 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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