Characterizing the phase profile of a vortex beam with angular-double-slit interference

被引：34

作者：

Liu, Ruifeng ^{[1
]}

Long, Junling ^{[1
]}

Wang, Feiran ^{[1
]}

Wang, Yunlong ^{[1
]}

Zhang, Pei ^{[1
]}

Gao, Hong ^{[1
]}

Li, Fuli ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Dept Appl Phys, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China

来源：

JOURNAL OF OPTICS | 2013年 / 15卷 / 12期

基金：

中国国家自然科学基金;

关键词：

vortex beam; orbital angular momentum; angular-double-slit interference; GAUSSIAN LASER MODES; MOMENTUM; LIGHT; PHOTON;

D O I：

10.1088/2040-8978/15/12/125712

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The diffracted intensity distribution of a Laguerre-Gaussian beam is studied with an angular-double-slit interferometer. We experimentally demonstrate that the spiral phase structure of a vortex beam can be clearly revealed in this interference geometry, and it gives us an efficient way to distinguish different orders of Laguerre-Gaussian beams. This angular-double-slit interferometer gives us a better understanding of the phase structure of a vortex beam and the interference phenomenon of vortex beams.

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页数：5

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