Measuring mode indices of a partially coherent vortex beam with Hanbury Brown and Twiss type experiment

被引：35

作者：

Liu, Ruifeng ^{[1
]}

Wang, Feiran ^{[1
]}

Chen, Dongxu ^{[1
]}

Wang, Yunlong ^{[1
]}

Zhou, Yu ^{[1
]}

Gao, Hong ^{[1
]}

Zhang, Pei ^{[1
]}

Li, Fuli ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Key Lab Quantum Informat & Quantum Optoelect Devi, Xian 710049, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 05期

基金：

中国国家自然科学基金;

关键词：

ORBITAL ANGULAR-MOMENTUM; OPTICAL VORTICES; LIGHT; PHOTON; INTENSITY;

D O I：

10.1063/1.4941422

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

It is known that the cross-correlation function (CCF) of a partially coherent vortex (PCV) beam shows a robust link with the radial and azimuthal mode indices. However, the previous proposals are difficult to measure the CCF in practical systems, especially in the case of astronomical objects. In this letter, we demonstrate experimentally that the Hanbury Brown and Twiss effect can be used to measure the mode indices of the original vortex beam and investigate the relationship between the spatial coherent width and the characterization of CCF of the PCV beam. The technique we exploit is quite efficient and robust, and it may be useful in the field of free space communication and astronomy which are related to the photon's orbital angular momentum. (C) 2016 AIP Publishing LLC.

引用

页数：4

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