Generation of optical vortex array based on the fractional Talbot effect

被引：50
|
作者：
Wei, Gong-Xiang [1 ,2 ]
Lu, Lei-Lei [1 ]
Guo, Cheng-Shan [1 ]
机构：
[1] Shandong Normal Univ, Dept Phys, Jinan 250014, Shandong, Peoples R China
[2] Shandong Univ Technol, Sch Sci, Zibo 255049, Shandong, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2009年 / 282卷 / 14期
基金：
中国国家自然科学基金;
关键词：
Optical vortices; Fractional Talbot effect; Talbot array illuminator; Diffractiv; e optical element; ANGULAR-MOMENTUM; VORTICES; INTERFERENCE; TWEEZERS; LATTICES; WAVES; LIGHT; SHAPE;
D O I：
10.1016/j.optcom.2009.04.001
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A phase-only diffractive optical element (DOE) for generating array of optical vortices with high compression ratio is presented. Since it is designed according to the fractional Talbot effect, we name the DOE optical vortex Talbot array illuminator (OVTAI). As an example, an OVTAI for generating a hexagonal array of optical vortices is designed, and demonstrated through displaying the OVTAI on a programmable liquid crystal spatial light modulator. The diffraction properties of the vortex array generated by the OVTAI are observed and analyzed, and an optimal distance for generating sharp ringed vortex arrays is given. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：2665 / 2669
页数：5
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