期刊论文

Yang, Zhen-Jun

英文

Optik

0030-4026

2021

245

167644

10.1016/j.ijleo.2021.167644

This research was supported by the National Natural Science Foundation of China (Grant No. 11874142 ), the Hunan Provincial Natural Science Foundation of China (Grant No. 2019JJ40003 ), the Natural Science Foundation of Hebei Province of China (Grant No. A2020205009 ), and the Scientific Research Fund of Hunan Provincial Education Department, China (Grant No. 20A071 ).

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The propagation and transformation of four-petal Gaussian vortex beams in optical fractional Fourier transform system is investigated on the basis of the framework of Collins diffraction integral. The mathematical expression of propagation transformation is derived, and typical propagation and transformation characteristics are illustrated by numerical results. The effects of fractional Fourier order, beam order, vortex topological charge, beam width and lens focal length on the fractional Fourier transform of four-petal Gaussian vortex beams a...