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Proceedings Paper

Bichromatic optical switch of diffractive light from a photonic crystal based on HPDLC doped with azo component
Author(s): Ming Shian Li; Andy Ying-Guey Fuh; Jui-Hsiang Liu; Shing-Trong Wu
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Paper Abstract

This study demonstrates all optical switches between the four diffractive light levels of a body-centered tetragonal photonic crystal. The sample is based on holographic polymer-dispersed liquid crystals that are fabricated using a twobeam interference with multiple exposures. The switching mechanism bases on the effective index modulation of the PC that contains a liquid crystal/azo-dye mixture could be controlled by two pumping laser beams. The switching time between the blue-laser-pumped and the blue-and-green-laser-pumped levels is fast.

Paper Details

Date Published: 5 March 2013
PDF: 6 pages
Proc. SPIE 8642, Emerging Liquid Crystal Technologies VIII, 86420F (5 March 2013); doi: 10.1117/12.2007363
Show Author Affiliations
Ming Shian Li, National Cheng Kung Univ. (Taiwan)
Andy Ying-Guey Fuh, National Cheng Kung Univ. (Taiwan)
Jui-Hsiang Liu, National Cheng Kung Univ. (Taiwan)
Shing-Trong Wu, National Cheng Kung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 8642:
Emerging Liquid Crystal Technologies VIII
Liang-Chy Chien; Dick J. Broer; Vladimir Chigrinov; Tae-Hoon Yoon, Editor(s)

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