Fraunhofer diffraction of Laguerre–Gaussian beam caused by a dynamic superposed dual-triangular aperture

Xinzhong Li; Yuping Tai; Zhaogang Nie; Hui Wang; Hehe Li; Jingge Wang; Jie Tang; Yishan Wang

doi:10.1117/1.OE.54.12.123113

24 December 2015 Fraunhofer diffraction of Laguerre–Gaussian beam caused by a dynamic superposed dual-triangular aperture

Xinzhong Li, Yuping Tai, Zhaogang Nie, Hui Wang, Hehe Li, Jingge Wang, Jie Tang, Yishan Wang

Author Affiliations +

Optical Engineering, Vol. 54, Issue 12, 123113 (December 2015). https://doi.org/10.1117/1.OE.54.12.123113

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.

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Xinzhong Li, Yuping Tai, Zhaogang Nie, Hui Wang, Hehe Li, Jingge Wang, Jie Tang, and Yishan Wang "Fraunhofer diffraction of Laguerre–Gaussian beam caused by a dynamic superposed dual-triangular aperture," Optical Engineering 54(12), 123113 (24 December 2015). https://doi.org/10.1117/1.OE.54.12.123113

Published: 24 December 2015

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