The manipulation of spin angular momentum for binary circular Airy beam during propagation

IF 5.4 1区 物理与天体物理 Q1 OPTICS
APL Photonics Pub Date : 2024-09-18 DOI:10.1063/5.0223250
Guang-Bo Zhang, Xu-Zhen Gao, Qing-Lu Li, Ya-Ning Kong, Tian-Fei Zhao, Shi-Tong Xu, Ren-De Ma, Jia-Qi Lü, Yue Pan
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引用次数: 0

Abstract

The Airy beam has attracted great attention since it was proposed in 2007 due to its novel properties, such as non-diffraction, self-healing, and self-acceleration. However, the spin angular momentum (SAM), which is an intrinsic nature of light, has rarely been studied by the Airy beam. Here, we propose a kind of binary circular Airy beam (BCAB) with space-variant polarizations and vortex phases and study the SAM evolution of the BCAB during propagation. We find the effects of appearance and annihilation of SAM during the propagation of BCAB, and the SAM can be further manipulated by adjusting the initial phase and polarization distribution of BCAB. Moreover, the optical tube, optical needle, and optical cage carrying different SAMs are achieved in propagation, which can be applied in various regions, such as optical trapping and manipulation. The BCAB significantly enriches the family of structured light and provides a flexible control scheme of SAM, which can further promote the application of SAM in many fields.
二元圆形艾里光束传播过程中的自旋角动量操纵
自 2007 年提出以来,Airy 光束因其新颖的特性,如非衍射、自修复和自加速等,引起了人们的极大关注。然而,作为光的固有性质的自旋角动量(SAM)却很少被艾里光束所研究。在这里,我们提出了一种具有空间变偏振和涡旋相的双圆形艾里光束(BCAB),并研究了 BCAB 在传播过程中的自旋角动量演化。我们发现了SAM在BCAB传播过程中的出现和湮灭效应,并且可以通过调整BCAB的初始相位和偏振分布来进一步操纵SAM。此外,在传播过程中还实现了携带不同SAM的光管、光针和光笼,可应用于光学捕获和操纵等多个领域。BCAB 极大地丰富了结构光家族,并提供了灵活的 SAM 控制方案,可进一步推动 SAM 在多个领域的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
APL Photonics
APL Photonics Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
10.30
自引率
3.60%
发文量
107
审稿时长
19 weeks
期刊介绍: APL Photonics is the new dedicated home for open access multidisciplinary research from and for the photonics community. The journal publishes fundamental and applied results that significantly advance the knowledge in photonics across physics, chemistry, biology and materials science.
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