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Young's double slit interference with vortex source

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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.

Young's double slitvortex sourceinteference patterns

段琦琳、赵鹏飞、殷玉杭、陈焕阳

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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

Jiujiang Research Institute of Xiamen University,Jiujiang 332000,China

National Key Research and Development Program of ChinaNational Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaJiangxi Provincial Natural Science FoundationFundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central UniversitiesChina Scholarship Council

2020YFA07101002023YFA1407100920501021237441020224ACB2010052072023010220720220033202206310009

2024

10.1088/1674-1056/acfdfd

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
年,卷(期)：2024.33(1)
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