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Optical Engineering

Fraunhofer diffraction of Laguerre–Gaussian beam caused by a dynamic superposed dual-triangular aperture
Author(s): Xinzhong Li; Yuping Tai; Zhaogang Nie; Hui Wang; Hehe Li; Jingge Wang; Jie Tang; Yishan Wang
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Paper Abstract

We investigate the Fraunhofer diffraction of a Laguerre–Gaussian (LG) beam incident on a dynamic superposed dual-triangular aperture. The evolution of the diffraction pattern from this aperture is analyzed experimentally and theoretically. A special aperture, called the hex-star triangular aperture, demonstrates interesting diffraction patterns. Further, the diffraction properties of integer, half-integer, and fractional orders of topological charges at the Fraunhofer zone are studied by using the hex-star triangular aperture. This study can provide additional information to enhance the understanding of the diffraction properties of the LG beam transmitted through a complex aperture.

Paper Details

Date Published: 24 December 2015
PDF: 10 pages
Opt. Eng. 54(12) 123113 doi: 10.1117/1.OE.54.12.123113
Published in: Optical Engineering Volume 54, Issue 12
Show Author Affiliations
Xinzhong Li, Henan Univ. of Science and Technology (China)
Yuping Tai, Henan Univ. of Science and Technology (China)
Zhaogang Nie, Nanyang Technological Univ. (Singapore)
Hui Wang, Henan Univ. of Science and Technology (China)
Hehe Li, Henan Univ. of Science and Technology (China)
Jingge Wang, Henan Univ. of Science and Technology (China)
Jie Tang, State Key Lab. of Transient Optics and Photonics (China)
Yishan Wang, State Key Lab. of Transient Optics and Photonics (China)


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