標題: Crucial effects of the anisotropy on optical field induced pattern formation in nematic liquid crystal films
作者: Hsu, HK
Chen, SH
Lai, Y
光電工程學系
Department of Photonics
公開日期: 5-四月-2004
摘要: We present here the crucial effects of material anisotropy on optical field induced pattern formation in the one-feedback-mirror arrangement which utilizes the nematic liquid crystal film as the nonlinear medium. By using the quasi-static electric-field-biased planar-aligned homogeneous nematic liquid crystal (NLC) films, we observe both the hexagon and the roll patterns which can be switched optically due to the intrinsic anisotropic distribution of the threshold intensity. The anisotropy comes from the anisotropic nonlinear response of the NLC film and is the crucial factor for such a one-feedback-mirror system to form both the roll and hexagon patterns. The observed phenomena can be explained from the linear stability analysis of the governing diffusion-like equation. The experimental results indicate that the stable roll patterns are formed at low input light power and the stable hexagon patterns formed at high input power. (C) 2004 Optical Society of America.
URI: http://dx.doi.org/10.1364/OPEX.12.001320
http://hdl.handle.net/11536/26880
ISSN: 1094-4087
DOI: 10.1364/OPEX.12.001320
期刊: OPTICS EXPRESS
Volume: 12
Issue: 7
起始頁: 1320
結束頁: 1328
顯示於類別:期刊論文


文件中的檔案:

  1. 000220640900016.pdf

若為 zip 檔案,請下載檔案解壓縮後,用瀏覽器開啟資料夾中的 index.html 瀏覽全文。