Precise design of two-dimensional diffractive optical elements for beam shaping

被引：43
|
作者：
Qu, Weidong [1 ]
Gu, Huarong [1 ]
Tan, Qiaofeng [1 ]
Jin, Guofan [1 ]
机构：
[1] Tsinghua Univ, Dept Precis Instrument, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China
来源：
APPLIED OPTICS | 2015年 / 54卷 / 21期
基金：
北京市自然科学基金; 中国国家自然科学基金;
关键词：
PLANE PICTURES; PHASE ELEMENTS; PROJECTION; IMAGE; ALGORITHMS;
D O I：
10.1364/AO.54.006521
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Diffractive optical elements (DOEs) for beam shaping are widely used in many fields, and there are many kinds of optimization algorithms to design the DOEs for beam shaping. However, only the intensity distribution of the selected sampling points is controlled by these optimization algorithms. The intensity distribution of other points on the output plane is always far away from the ideal distribution. The reason is that the sampling interval on the output plane is not small enough. In this paper, a new modified GS algorithm is presented with a small enough sampling interval on the output plane. A two-dimensional DOE for beam shaping is designed, and the simulation results and the experimental results demonstrate the good performance of this algorithm. (C) 2015 Optical Society of America
引用
收藏
页码：6521 / 6525
页数：5
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