摘要
提出一种改进的Gerchberg-Saxton(G-S)算法,实现了基于环形光束的衍射光学元件的精确设计。所提算法可以确保输出平面上有小的采样间隔,起到了抑制散斑的作用;与未采用散斑抑制的常规的改进G-S算法相比,所提算法得到了更高性能的均匀光斑;仿真结果和实验结果一致。
An improved Gerchberg-Saxton(G-S)algorithm is proposed to realize the accurate design of the diffractive optical elements based on annular beams.This algorithm ensures a small sampling interval on the output plane and suppresses speckle.Compared with the design results of the conventional improved G-S algorithm without speckle suppression,a uniform spot with better performance is obtained by the proposed algorithm.The simulated results are in agreement with the experimental results.
作者
杨美霞
孔哲
谭峭峰
任钢
薛亮平
Yang Meixia;Kong Zhe;Tan Qiaofeng;Ren Gang;Xue Liangping(Southwest Institute of Technical Physics,Chengdu,Sichuan 610041,China;Department of Precision Instrument,Tsinghua University,Beijing 100084,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2019年第3期84-89,共6页
Acta Optica Sinica
基金
国家自然科学基金(61675109)
