Quasistatic electric-field-modulated optical pattern transition in a thin nematic liquid-crystal film with a single feedback mirror

Hsu Kuan Hsu*, Yin-Chieh Lai, Shu Hsia Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The pattern formation in the transverse of a continuous profile in a continous-wave laser beam passing through a parallel planar-aligned nematic liquid crystal (NLC) film biased by a quasistatic electric field was discussed. It was found that the effect of the biasing voltage was studied through the ability to change the nonlinearity by modulating the orientation of the NLC molecule electrically. The optical pattern transition from the hexagonal to the roll was achieved by modulating the quasistatic electric field. The explanation of the pattern transition by the linear stability analysis for the nonlinear liquid crystal film with optical feedback was also presented.

Original languageEnglish
Pages (from-to)2724-2726
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number14
DOIs
StatePublished - 4 Oct 2004

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