Digital generation of partially coherent vortex beams

被引：69
|
作者：
Perez-Garcia, Benjamin [1 ,2 ]
Yepiz, Adad [1 ]
Hernandez-Aranda, Raul I. [1 ]
Forbes, Andrew [2 ]
Swartzlander, Grover A., Jr. [3 ]
机构：
[1] Tecnol Monterrey, Photon & Math Opt Grp, Monterrey 64849, Mexico
[2] Univ Witwatersrand, Private Bag 3, ZA-2050 Johannesburg, South Africa
[3] Rochester Inst Technol, 54 Lomb Mem Dr, Rochester, NY 14623 USA
来源：
OPTICS LETTERS | 2016年 / 41卷 / 15期
基金：
美国国家科学基金会;
关键词：
ORBITAL ANGULAR-MOMENTUM; LIGHT; SINGULARITY;
D O I：
10.1364/OL.41.003471
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present an experimental technique to generate partially coherent vortex beams with an arbitrary azimuthal index using only a spatial light modulator. Our approach is based on digitally simulating the intrinsic randomness of broadband light passing through a spiral phase plate. We illustrate the versatility of the technique by generating partially coherent beams with different coherence lengths and orbital angular momentum content, without any moving optical device. Consequently, we study its cross-correlation function in a wavefront folding interferometer. The comparison with theoretical predictions yields excellent agreement. (C) 2016 Optical Society of America
引用
收藏
页码：3471 / 3474
页数：4
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