Optical and electro-optical properties of photonic crystals based on polymer-dispersed liquid crystals

被引：4
|
作者：
Li, M. -S. [1 ]
Huang, S. -Y. [1 ]
Wu, S. -T. [2 ]
Lin, H. -C. [2 ]
Fuh, A. Y. -G. [1 ,2 ]
机构：
[1] Natl Cheng Kung Univ, Inst Electroopt Sci & Engn, Tainan 701, Taiwan
[2] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2010年 / 101卷 / 1-2期
关键词：
PERIODIC STRUCTURES; INTERFERENCE; FABRICATION; GRATINGS;
D O I：
10.1007/s00340-010-4110-y
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Two-dimensional (2-D) square lattice (SL) photonic crystals (PCs) are fabricated, and their optical/electro-optical properties are studied. The PCs are based on polymer-dispersed liquid crystals (PDLC) that are formed using two-beam interference with double exposures. The PC structure that is observed using a scanning electron microscope matches with the calculated interference pattern. The results of optical/electro-optical studies demonstrate that superprism and negative refraction effects occur at certain incident angles over a range of frequencies and are consistent with the simulated ones. Moreover, the negative refraction efficiency is electrically controllable.
引用
收藏
页码：245 / 252
页数：8
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