[1]胡润,吴逢铁,杨艳飞.采用轴棱锥检测涡旋光束拓扑电荷数的方法[J].华侨大学学报(自然科学版),2017,38(5):706-709.[doi:10.11830/ISSN.1000-5013.201703076]
　HU Run,WU Fengtie,YANG Yanfei.Methods for Detecting Topological Charge Number of Vortex Beams Using Axicon[J].Journal of Huaqiao University(Natural Science),2017,38(5):706-709.[doi:10.11830/ISSN.1000-5013.201703076]
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采用轴棱锥检测涡旋光束拓扑电荷数的方法()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第38卷
期数:
2017年第5期
页码:
706-709
栏目:
出版日期:
2017-09-20

文章信息/Info

Title:
Methods for Detecting Topological Charge Number of Vortex Beams Using Axicon
文章编号:
1000-5013(2017)05-0706-04
作者:
胡润1; 2;  吴逢铁1; 2;  杨艳飞1; 2
1. 华侨大学 信息科学与工程学院, 福建 厦门 361021;2. 华侨大学 福建省光传输与变换重点实验室, 福建 厦门 361021
Author(s):
HU Run1; 2;  WU Fengtie1; 2;  YANG Yanfei1; 2
1. College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China; 2. Fujian Key Laboratory of Optical Beam Transmission and Transformation, Huaqiao University, Xiamen 361021, China
关键词:
衍射积分理论;  涡旋光;  轴棱锥;  拓扑电荷数
Keywords:
diffraction integral theory;  vortex beam;  axicon;  topological charge number
分类号:
O436.1
DOI:
10.11830/ISSN.1000-5013.201703076
文献标志码:
A
摘要:
基于基尔霍夫衍射积分理论,分别推导涡旋光斜入射轴棱锥与凸透镜后的衍射光场表达式.提出一种利用轴棱锥检测光束拓扑电荷数信息的简单可行方案,并将此方案与凸透镜聚焦斜入射涡旋光方案进行对比.研究结果表明:应用轴棱锥聚焦斜入射涡旋光检测拓扑电荷数信息的方式无需对检测点进行严格定标,实际检测工作中该方案更具备灵活性,适用性也更为广泛.通过对设计实验进行验证,实验与理论基本吻合.
Abstract:
Based on Kirchhoff diffraction integral theory, the expressions of diffraction field after the axicon and convex lens that illuminated by an oblique vortex beam are derived. A simple and feasible method for detecting topological charge number by using an axicon is proposed. We compare this method with that of using convex lens, results show that there is no need to fix detection point strictly by using an axicon. In practice, this method shows more flexibility and applicability. Experiments are designed to verify the researches. Experimental results are in good agreement with theoretical predictions and numerical simulation.

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备注/Memo

备注/Memo:
收稿日期: 2017-03-29
通信作者: 吴逢铁(1958-),男,教授,博士,主要从事光束传输与变换、短脉冲技术及非线性光学等方面的研究.E-mail:fengtie@hqu.edu.cn.
基金项目: 国家自然科学青年基金资助项目(61605049); 福建省科技计划重大项目(2016H6016)
更新日期/Last Update: 2017-09-20