Optically Induced Extraordinarily Large Negative Orientational Nonlinearity in Dye-Doped Liquid Crystal

Lam Choon Khoo, Hong Li, Yu Liang

Research output: Contribution to journalComment/debate

107 Scopus citations

Abstract

Laser Induced large negative reorientational Nonlinearities are observed in dye-doped liquid crystal. The effect is attributed to intermolecular torque exerted by the photoex-cited dye molecules, which causes the liquid crystal axis to realign in a direction orthogonal to the optical electric field. Optical nonlinearity as large as 10-2 cm2/Watt in a 37 μm thick sample has been observed. In some highly absorptive dyed liquid crystal, the orientational effect can be much larger than the thermal effect.

Original languageEnglish (US)
Pages (from-to)1444-1447
Number of pages4
JournalIEEE Journal of Quantum Electronics
Volume29
Issue number5
DOIs
StatePublished - May 1993

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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