Optimization design of diffractive phase elements for beam shaping.
Optimization design of diffractive phase elements for beam shaping.
复制标题
DOI：
10.1364/ao.50.005938
复制
发表时间：
2011-11
期刊：
影响因子：
1.9
通讯作者：
Xia Yu;Keqiu Chen;Yan Zhang
中科院分区：
文献类型：
--
作者：
Xia Yu;Keqiu Chen;Yan Zhang
提出了一种改进的分数傅里叶变换域和自由空间光束整形衍射相位元件（DPE）的设计方法--加权YG算法。为了将高斯光束最佳地转换成均匀光束，对几个分数阶数和不同光束参数的DPE进行了建模设计。实验结果表明，该算法可以改善光束整形效果，减小误差函数，提高光强均匀性。
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.