Polarization-independent and fast tunable microlens array based on blue phase liquid crystals

被引：31
|
作者：
Lin, Shih-Hung [1 ]
Huang, Lin-Song [1 ]
Lin, Chi-Huang [1 ]
Kuo, Chie-Tong [1 ]
机构：
[1] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 80424, Taiwan
来源：
OPTICS EXPRESS | 2014年 / 22卷 / 01期
关键词：
EFFICIENCY; LENSES; CELLS;
D O I：
10.1364/OE.22.000925
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This work investigates a polarization- independent and fast response microlens array. This array is composed of a concave polymer microlens array and blue phase liquid crystals (BPLCs). The microlens array can be either positive or negative, depending on the birefringence of the BPLCs. The experimental results show that the microlens array is fast switched between positive and negative focal lengths via controlling the electric fields, and the response time is a few hundred microseconds. Additionally, the focusing efficiency is independent of the polarization of the incident light. (C) 2014 Optical Society of America
引用
收藏
页码：925 / 930
页数：6
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