Young's double slit interference with vortex source

段琦琳 ¹赵鹏飞 ²殷玉杭 ²陈焕阳³

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作者信息

1. Institute of Electromagnetics and Acoustics and Department of Physics,College of Physical Science and Technology,Xiamen University,Xiamen 361005,China;Department of Electrical and Computer Engineering,National University of Singapore,117583,Singapore
2. Institute of Electromagnetics and Acoustics and Department of Physics,College of Physical Science and Technology,Xiamen University,Xiamen 361005,China
3. Institute of Electromagnetics and Acoustics and Department of Physics,College of Physical Science and Technology,Xiamen University,Xiamen 361005,China;Jiujiang Research Institute of Xiamen University,Jiujiang 332000,China
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Abstract

The fast and convenient demultiplex of optical vortex(OV)mode is crucial for its further application.We propose a novel approach that combines classic Young's doublet with an OV source to effectively identify the OV mode through the analysis of interference patterns.The interference patterns of the OV source incident on the double slits can be perfectly illustrated by using both the classical double-slit interference method and the Huygens-Fresnel principle.The interference fringes will twist along the negative or positive direction of x axis when topological charge(TC)、＞0 or l＜0,and the degree of the movement varies with the TC,allowing for a quantitative display of the OV characteristics through the interference patterns.Additionally,we deduce analytically that the zeroth-order interference fringe has a linear relationship with the TC and the vertical position.These findings highlight the ability to identify the OV mode by analyzing the interference patterns produced by Young's doublet.

Key words

Young's double slit/vortex source/inteference patterns

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基金项目

National Key Research and Development Program of China(2020YFA0710100)

National Key Research and Development Program of China(2023YFA1407100)

National Natural Science Foundation of China(92050102)

National Natural Science Foundation of China(12374410)

Jiangxi Provincial Natural Science Foundation(20224ACB201005)

Fundamental Research Funds for the Central Universities(20720230102)

Fundamental Research Funds for the Central Universities(20720220033)

China Scholarship Council(202206310009)

出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

参考文献量29

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