Design the diffractive optical element with large diffraction angle based on Rayleigh-Sommerfeld Integral

被引：0

作者：

Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu ^{[1
]}

610209, China

不详 ^{[2
]}

610064, China

不详 ^{[3
]}

401122, China

机构：

[1] Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu

[2] School of Optoelectronic Information, University of Electronic Science and Technology, Chengdu

[3] Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing

来源：

Guangzi Xuebao | / 5卷

关键词：

Computer holography; Diffractive optical element; Diffractive optics; Iterative algorithm; Optical design; Phase retrieval; Rayleigh-Sommerfeld Integral;

D O I：

10.3788/gzxb20154405.0522002

中图分类号：

学科分类号：

摘要：

A novel method is presented for designing the diffractive optical element with large diffraction angle based on the Rayleigh-Sommerfeld Integral. In the design, the target intensity distribution is firstly modified with coordinate transformation and intensity adjustment. Thereafter the modified Gerchberg-Saxton algorithm is adopted to optimize the phase distribution of the diffractive optical element. Our method and the original method, which adopts Frauhofer diffraction integral to calculate the diffraction, are used to design the diffractive optical element to reconstruct a structured light and a square pattern with different diffraction angle. And the result shows that the original method can work well only the diffraction angle below 25°. When the diffraction angle gets larger the reconstructed light field shows significant pillow distortion and uneven intensity distribution. In contrast, our method can achieve the exact diffraction angle and even intensity distribution at all the angle. ©, 2015, Chinese Optical Society. All right reserved.

引用

页数：6

共 17 条

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