The energy distribution evolution of Airy-Hermite-Gaussian beams

In this paper, the Airy-Hermite-Gaussian (AHG) beams and its three modulation methods are studied in both theoretical and experimental aspects. Three kinds of modulation methods are vortex phase modulation, sine vortex phase modulation, and cosine vortex phase modulation. We use a spatial light modu...

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Bibliographic Details
Published in:Optics communications 2021-06, Vol.488, p.126818, Article 126818
Main Authors: Kang, Xiangyu, Yu, Dahai, Li, Yue, Wang, Guanxue, Song, Bo, Li, Yang, Dong, Xiangmei, Gao, Xiumin
Format: Article
Language:English
Subjects:
Airy-Hermite-Gaussian beams
Energy distribution
Vortex phase modulation
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Summary:In this paper, the Airy-Hermite-Gaussian (AHG) beams and its three modulation methods are studied in both theoretical and experimental aspects. Three kinds of modulation methods are vortex phase modulation, sine vortex phase modulation, and cosine vortex phase modulation. We use a spatial light modulator (SLM) to modulate the AHG beams by encoding. The evolution law of the energy distribution of AHG beams with different beam orders (m, n) and topological charge parameter l are given. At the same time, three kinds of vortex modulations are performed on the AHG beams, and its energy distribution and evolution are deeply analyzed. The research method in this paper has certain significance for the development of optical tweezers, optical communication, and laser modal analysis. •The AHG beams and its three modulation methods are studied in theory and experiment.•Evolution law of AHG beams under different topological charge number and beam order.•Energy distribution and evolution of AHG beams under three vortex modulation modes.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2021.126818