Nonlinear optical phenomena in fullerene-doped liquid crystal films and fibers

Iam Choon Khoo, Hong Li, Y. Liang, Ming Lee, B. Yarnell, Kon Well Wang, M. C. Wood

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

In this presentation, we shall describe the mechanisms and dynamics of two newly observed phenomena in fullerene C60 doped liquid crystal, namely, holographic grating formation in thin film structures and nonlinear pulsed propagation and optical limiting in isotropic liquid crystal cored fibers and fiber arrays. The unusually large photorefractive like nonlinearity of C60 doped nematic film allows us to write permanent holographic gratings which can be electronically modulated. In fullerene-doped liquid crystalline cored fibers, we have observed greatly enhanced nonlinear optical transmission and propagation effects caused by nonlinear scattering, defocusing, increasing absorption and possibly other nonlinear processes. The resulting lower threshold and reduced interaction-length requirement enable one to design practical liquid crystal fiber arrays that could function as imaging faceplate as well as sensor protection devices.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages134-148
Number of pages15
Volume2530
ISBN (Print)0819418897, 9780819418890
DOIs
StatePublished - 1995
EventFullerenes and Photonics II - San Diego, CA, USA
Duration: Jul 10 1995Jul 11 1995

Other

OtherFullerenes and Photonics II
CitySan Diego, CA, USA
Period7/10/957/11/95

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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