Imaging Components, Systems, and Processing

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

[+] Author Affiliations
Xinzhong Li, Hui Wang, Hehe Li, Jingge Wang

Henan University of Science and Technology, School of Physics and Engineering, 263 Kaiyuan Road, Luoyang 471003, China

Yuping Tai

Henan University of Science and Technology, School of Chemical Engineering and Pharmaceutics, 263 Kaiyuan Road, Luoyang 471003, China

Zhaogang Nie

Nanyang Technological University, School of Physical and Mathematical Sciences, 50 Nanyang Avenue, Singapore 637371, Singapore

Jie Tang, Yishan Wang

State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences, 17 Xinxi Road, Xi’an 710119, China

Opt. Eng. 54(12), 123113 (Dec 24, 2015). doi:10.1117/1.OE.54.12.123113
History: Received September 28, 2015; Accepted November 23, 2015
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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.

© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Xinzhong Li ; Yuping Tai ; Zhaogang Nie ; Hui Wang ; Hehe Li, et al.
"Fraunhofer diffraction of Laguerre–Gaussian beam caused by a dynamic superposed dual-triangular aperture", Opt. Eng. 54(12), 123113 (Dec 24, 2015). ; http://dx.doi.org/10.1117/1.OE.54.12.123113


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