Optical and electro-optical control of grating efficiency in a nematic liquid crystal cell with azo polymer boundary

Hyoungwon Baac, Jae Hong Park, Sin Doo Lee, Suk Hoon Kang, Dong Hoon Choi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A novel control of the grating efficiency in a nematic liquid crystal cell with an azobenzene polymer surface is proposed. In an optical control regime, the grating effect can be controlled by alternate polarization switchings of one pump beam due to strong polarization sensitivity of azobenzene chromophores. Moreover, the grating efficiency can be easily tuned by an external ac electric field.

Original languageEnglish
Pages (from-to)227-230
Number of pages4
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume371
DOIs
Publication statusPublished - 2001
Externally publishedYes

Keywords

  • Azobenzene polymer
  • Liquid crystal grating
  • Polarization grating

ASJC Scopus subject areas

  • Condensed Matter Physics

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