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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47111

Title: Characterizing the propagation evolution of wave patterns and vortex structures in astigmatic transformations of Hermite–Gaussian beams
Authors: K. F. Huang
Y. F. Chen
C. C. Chang
C. Y. Lee
J. C. Tung
H. C. Liang
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2018-01
Issue Date: 2018-07-03T01:37:34Z
Publisher: Laser Physics
Abstract: Abstract: Theoretical wave functions are analytically derived to characterize the propagation evolution of the Hermite–Gaussian (HG) beams transformed by a single-lens astigmatic mode converter with arbitrary angle. The derived wave functions are related to the combination of the rotation transform and the antisymmetric fractional Fourier transform. The derived formula is systematically validated by using an off-axis diode-pumped solid-state laser to generate various high-order HG beams for mode conversions. In addition to validation, the creation and evolution of vortex structures in the transformed HG beams are numerically manifested. The present theoretical analyses can be used not only to characterize the evolution of the transformed beams but to design the optical vortex beams with various forms.
Relation: 28(1)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47111
Appears in Collections:[光電科學研究所] 期刊論文

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