Two-dimensional polarization encoding with a phase-only liquid-crystal spatial light modulator

被引:220
|
作者
Davis, JA [1 ]
McNamara, DE
Cottrell, DM
Sonehara, T
机构
[1] San Diego State Univ, Dept Phys, San Diego, CA 92182 USA
[2] Seiko Epson Corp, Corp Res & Dev, Nagano 392, Japan
关键词
D O I
10.1364/AO.39.001549
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We show how to two dimensionally encode the polarization state of an incident light beam using a parallel-aligned liquid-crystal spatial light modulator (LCSLM). Each pixel of the LCSLM acts as a voltage-controlled wave plate and can be programmed over a 2 pi phase range at a wavelength of 514.5 nm. Techniques are reviewed for either rotating the major axis of elliptically polarized Light or for converting an input Linearly polarized beam into an arbitrary elliptically polarized beam. Experimental results are demonstrated in which we generate various two-dimensional spatial patterns of polarized light. Several potential applications are suggested. We also report an unexpected edge-enhancement effect that might be useful in image processing applications. (C) 2000 Optical Society of America.
引用
收藏
页码:1549 / 1554
页数:6
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