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Optimization design of diffractive phase elements for beam shaping.

作者信息

Yu Xia, Chen Ke-Qiu, Zhang Yan

机构信息

Department of Applied Physics, Hunan University, Changsha 410082, China.

出版信息

Appl Opt. 2011 Nov 1;50(31):5938-43. doi: 10.1364/AO.50.005938.

DOI:10.1364/AO.50.005938
PMID:22086017
Abstract

An improved approach called the weighted YG algorithm for the design of the diffractive phase element (DPE) that implements beam shaping in the fractional Fourier transform domain and free space is presented. Modeling designs of the DPE are carried out for several fractional orders and different parameters of the beam for optimally converting a Gaussian profile into a uniform beam. We found that our algorithm can improve the beam shaping effect, reduce the error function, and increase uniformity of light intensity.

摘要

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