Fast-response and high-efficiency optical switch based on dual-frequency liquid crystal polarization grating
Fast-response and high-efficiency optical switch based on dual-frequency liquid crystal polarization grating
复制标题
基于双频液晶偏振光栅的快速响应高效光开关
DOI：
10.1364/ome.6.000597
复制
发表时间：
2016-02-01
影响因子：
2.8
通讯作者：
Lu, Yan-Qing
中科院分区：
文献类型：
--
作者：
Duan, Wei;Chen, Peng;Lu, Yan-Qing
利用光刻法制备了一种双频液晶偏振光栅，并将其用作光开关。对于圆偏振入射的单一阶衍射，衍射效率高达95%。通过改变外加电场的频率，开关的导通和关断时间分别达到350 μs和550 μs。该工作为快速响应、高效率的光开关提供了一种新的设计思路，具有制作简单、功耗低等优点。
A dual-frequency liquid crystal polarization grating is fabricated by photoalignment and demonstrated as an optical switch. A high diffraction efficiency up to 95% is obtained for a single first order with circular incident polarization. Via merely alternating the frequency of applied electric field, the switch On and Off time reach 350 μs and 550 μs, respectively. This work supplies a new design for fast-response and high-efficiency optical switch with the merits of easy fabrication and low power consumption.