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Waves in Random and Complex Media Volume 34, 2024 - Issue 3
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Research Articles

Effects of the multi-order and off-axis vortex on the propagation of Pearcey Gaussian vortex beams with the astigmatic phase in a chiral medium

Zhicong HuangGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, People's Republic of ChinaORCID Iconhttps://orcid.org/0000-0003-3747-4966View further author information
ORCID Icon,
You WuGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, People's Republic of ChinaView further author information
,
Zejia LinGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, People's Republic of ChinaView further author information
,
Shihan HongGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, People's Republic of ChinaView further author information
,
Hongzhan LiuGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, People's Republic of ChinaView further author information
,
Xiangbo YangGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, People's Republic of ChinaView further author information
&
Dongmei DengGuangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou, People's Republic of ChinaCorrespondence[email protected]
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Pages 1759-1769 | Received 11 Oct 2020, Accepted 21 Jun 2021, Published online: 01 Jul 2021
 
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Abstract

We introduce the effects of the multi-order and off-axis vortex on the propagation of Pearcey Gaussian vortex beams (PGVBs) in a chiral medium. The effects of vortex positions, topological charges and chiral parameters on the light intensity distribution, the intensity concentration, the focusing position and the radiation force are studied. In addition, the radiation force of the PGVBs which can capture particles is discussed, and the size of the captured particles is also found. Finally, the maximum radiation forces of the left and the right circularly polarized-PGVBs are discussed separately with different particle sizes.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

National Natural Science Foundation of China (11374108, 11674107, 11775083, 61875057); The Extracurricular Scientific Program of School of Information and Optoelectronic Science and Engineering, South China Normal University.

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