Talbot effect on orbital angular momentum beams: azimuthal intensity repetition-rate multiplication

被引：15
|
作者：
Hu, Jianqi [1 ]
Bres, Camille-Sophie [1 ]
Huang, Chen-Bin [2 ,3 ]
机构：
[1] Ecole Polytech Fed Lausanne, Photon Syst Lab, STI IEL, Stn 11, CH-1015 Lausanne, Switzerland
[2] Natl Tsing Hua Univ, Inst Photon Technol, 101,Sec 2,Kuang Fu Rd, Hsinchu 30013, Taiwan
[3] Acad Sinica, Res Ctr Appl Sci, 128,Sec 2,Acad Rd, Taipei, Taiwan
来源：
OPTICS LETTERS | 2018年 / 43卷 / 16期
基金：
瑞士国家科学基金会;
关键词：
FIBER;
D O I：
10.1364/OL.43.004033
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose and experimentally demonstrate the azimuthal Talbot effect on orbital angular momentum (OAM) beams. By applying predetermined phases to a number of OAM beams carrying different topological charges, the intensity petal is self-imaged in the azimuthal angle, with arbitrary azimuthal repetition-rate multiplication. The close analogy between temporal and azimuthal Talbot self-imaging is studied. In addition, the effect of amplitude apodization of the OAM spectrum on the resulting intensity pattern, and the azimuthal Talbot effect on Laguerre-Gaussian beams of the same radial indices, are experimentally investigated. All of our experimental images are in excellent agreement with simulation results. (C) 2018 Optical Society of America
引用
收藏
页码：4033 / 4036
页数：4
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