Optical phased array using high contrast gratings for two dimensional beamforming and beamsteering

被引：70
|
作者：
Yoo, Byung-Wook [1 ]
Megens, Mischa [1 ,2 ]
Chan, Trevor [2 ]
Sun, Tianbo [1 ]
Yang, Weijian [1 ]
Chang-Hasnain, Connie J. [1 ]
Horsley, David A. [2 ]
Wu, Ming C. [1 ]
机构：
[1] Univ Calif Berkeley, Sch Elect Engn & Comp Sci, Berkeley, CA 94720 USA
[2] Univ Calif Davis, Dept Mech & Aerosp Engn, Davis, CA 95616 USA
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 10期
关键词：
LIQUID-CRYSTAL;
D O I：
10.1364/OE.21.012238
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have developed a microelectromechanical system (MEMS) optical phased array incorporating a high-index-contrast subwavelength grating (HCG) for beamforming and beamsteering in a range of +/- 1.26 degrees x 1.26 degrees. Our approach needs only a thin single-layer HCG made of silicon, considerably improving its speed thanks to the low mass, and is suitable for high optical power applications. The measured resonant frequency of HCG is 0.32 MHz. (C) 2013 Optical Society of America
引用
收藏
页码：12238 / 12248
页数：11
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