Energy flow redistributions of azimuthally polarized Bessel– Gaussian beam modulated by phase plate in tight focusing system

被引：0
作者：
Zhou, Zijie [1 ]
Li, Jinsong [1 ]
Feng, Guojin [2 ]
Lu, Chenxu [1 ]
Li, Shuo [1 ]
机构：
[1] China Jiliang University, College of Optics and Electronic, Hangzhou
[2] National Institute of Metrology, Beijing
来源：
Optica Applicata | 2024年 / 54卷 / 03期
关键词：
energy flow; phase modulation; tight focusing; vortex;
D O I：
10.37190/oa240311
中图分类号：
学科分类号：
摘要：
In this article, we investigate the energy flow redistributions of azimuthally polarized Bessel –Gaussian beams in the focal field by modulating the phase of the phase plate and the topological charge of the phase plate. The results indicate that an increase in phase change parameter will cause the energy flow distribution to shift towards the positive direction of the coordinate axis and result in energy flow separating, while an increase in m will gradually concentrate energy into the center area of the energy flow. The change in phase distribution will affect the shape of energy flow distribution and rotating the phase plate will also bring about changes in the energy flow distribution. These phenomena may contribute to particle capture and transport. © 2024 Wroclaw University of Science and Technology. All rights reserved.
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页码：423 / 434
页数：11
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