Effects of the modulated vortex and second-order chirp on the propagation dynamics of ring Pearcey Gaussian beams

Effects of the modulated vortex and second-order chirp on the propagation dynamics of ring Pearcey Gaussian beams

The evolution of the chirped ring Pearcey Gaussian vortex (CRPGV) beams in free space is numerically investigated. The optical bottle beam and two-consecutive optical bottle beam can be directly generated from a ring Pearcey Gaussian beam with central vortices and the second-order chirp in free spac...

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Veröffentlicht in:Optics letters 2019-10, Vol.44 (19), p.4654
Hauptverfasser: Zhang, Liping, Deng, Dongmei, Yang, Xiangbo, Wang, Guanghui, Liu, Hongzhan
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Sprache:eng
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Beams (radiation)
Chirp
Gaussian beams (optics)
Vortices
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container_issue 19
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container_title Optics letters
container_volume 44
creator Zhang, Liping
Deng, Dongmei
Yang, Xiangbo
Wang, Guanghui
Liu, Hongzhan
description The evolution of the chirped ring Pearcey Gaussian vortex (CRPGV) beams in free space is numerically investigated. The optical bottle beam and two-consecutive optical bottle beam can be directly generated from a ring Pearcey Gaussian beam with central vortices and the second-order chirp in free space. In particular, the focusing intensity will decrease when the vortices' locations are far away from the center of the beam or the topological charges are smaller. Our results show that the beam shapes, the normalized focusing intensity, and the focal length of the CRPGV beams can be controlled by choosing different beam parameters.
doi_str_mv 10.1364/OL.44.004654
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subjects Beams (radiation)
Chirp
Gaussian beams (optics)
Vortices
title Effects of the modulated vortex and second-order chirp on the propagation dynamics of ring Pearcey Gaussian beams
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