Optically-induced molecular reorientation in nematic liquid crystals and nonlinear optical processes in the nanoseconds regime

Iam Choon Khoo, R. R. Michael, P. Y. Yan

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

We present 3 detailed theoretical analysis and experimental study of purely optically-induced nematic axis reorientation and the associated nonlinear optical processes such as self-phase modulations and optical switching. It is shown that under a sufficiently intense laser field (~100 MW/cm2), nematic liquid crystals will respond in the nanosecond regime. Single nanosecond laser pulse self-phase modulation and intensity switching effects are observed, The magnitude and dynamics of the response are in agreement with theoretical expectations. Optical power limiting and switching effects associated with self-phase modulations are also demonstrated.

Original languageEnglish (US)
Pages (from-to)267-272
Number of pages6
JournalIEEE Journal of Quantum Electronics
Volume23
Issue number2
DOIs
StatePublished - Feb 1987

All Science Journal Classification (ASJC) codes

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

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