Measurement of Airy-vortex beam topological charges based on a pixelated micropolarizer array

被引：11

作者：

Zhang, Yuntian ^{[1
,2
]}

Zhang, Qingchuan ^{[1
]}

Ma, Xuan ^{[1
]}

Jiang, Zhaoxiang ^{[1
]}

Xu, Tan ^{[1
]}

Wu, Shangquan ^{[1
]}

Wu, Xiaoping ^{[1
]}

机构：

[1] Univ Sci & Technol China, CAS Key Lab Mech Behav & Design Mat, Dept Modern Mech, Hefei 230027, Anhui, Peoples R China

[2] Hefei BOE Display Technol Co LTD, Hefei 230011, Peoples R China

来源：

APPLIED OPTICS | 2016年 / 55卷 / 32期

基金：

中国国家自然科学基金;

关键词：

ORBITAL ANGULAR-MOMENTUM; PROPAGATION; GENERATION; DYNAMICS;

D O I：

10.1364/AO.55.009299

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we numerically studied the intensity patterns and screw phases of an embedded optical vortex in an Airy beam generated by a 3/2 phase pattern imposed on a spatial light modulator. It is found that the optical vortex and the Airy beam's main lobe approach each other during propagation, which means the energy of the Airy beam's intensity peaks can be taken advantage of by the imposed vortices. Based on a pixelated micropolarizer array in the interference path, we succeeded in measuring the integer topological charges up to -10 according to the phase jump. In addition, fractional topological charges were also obtained in the experiment. Both of the experimental results are acquired in a high-precision and robust way. This work will promote potential application of Airy-vortex beams in fields such as optical manipulation, laser processing, and photon entanglement. (C) 2016 Optical Society of America

引用

页码：9299 / 9304

页数：6

共 31 条

[1] ORBITAL ANGULAR-MOMENTUM OF LIGHT AND THE TRANSFORMATION OF LAGUERRE-GAUSSIAN LASER MODES [J].