Photorefractivity in crosslinked polymer-stabilized nematic liquid crystals

Gary P. Wiederrecht*, Michael R Wasielewski

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

The observation of photorefractive gratings in new crosslinked polymer-stabilized liquid crystals (PSLCs) is discussed and compared to previous PSLCs. The PSLCs easily incorporate reduced or oxidized molecules that are present in a nematic liquid crystal at a concentration of 2 mol%. The PSLCs that are crosslinked provide improved photorefractive grating resolution, due to their improved functionality as an immobile electron trap. These materials are capable of functioning well into the Bragg diffraction regime. Photoconductivity experiments that support the photorefractive mechanism and a different charge transport mechanism than neat liquid crystals are also performed.

Original languageEnglish (US)
Pages (from-to)107-120
Number of pages14
JournalJournal of Nonlinear Optical Physics and Materials
Volume8
Issue number1
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

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

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