Nonlinear photorefractive effects in liquid crystals

I. C. Khoo, H. Li, Y. Liang

Research output: Contribution to conferencePaperpeer-review


Orientational photoreactive (OPR) effects in nematic liquid crystal film which are attributed to the molecular axis orientation and caused by the combination of an applied dc field and the dc source charge field are discussed. These effects are generated by applying dc field strengths on the order of 100 V/cm. The nematic film is 100 μm thick, this corresponds to a 'battery-size' voltage of 1 Volt. On the other hand, the observed nonlocal nonlinearity and beam coupling effect is very strong. This is attributed to the unusually large optical birefringence and dielectric anisotropy of nematic liquid crystal.

Original languageEnglish (US)
Number of pages2
StatePublished - 1994
EventProceedings of the 1994 IEEE LEOS Annual Meeting. Part 1 (of 2) - Boston, MA, USA
Duration: Oct 31 1994Nov 3 1994


OtherProceedings of the 1994 IEEE LEOS Annual Meeting. Part 1 (of 2)
CityBoston, MA, USA

All Science Journal Classification (ASJC) codes

  • General Engineering


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