基于遗传算法的全息光栅逆向优化设计  

Reverse Design Method of Holographic Grating by Genetic Algorithm

作　　者：朱苏云[1] 张国斌[1] 刘正坤[1] 孔帅[1] 崔胜涛[1] 孙喆[1] 

机构地区：[1]中国科学技术大学国家同步辐射实验室,合肥230029

出　　处：《光子学报》2012年第11期1297-1300,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(No.11105145;No.11275205);国家高技术研究发展计划(No.2012CB922000)资助

摘　　要：光栅是单色仪的核心器件,光栅的像差校正能力对单色仪性能有着决定性作用.本文研究了基于光线追迹点列图数值分析的遗传算法实现,建立了针对全息光栅成像质量的评价函数,并利用遗传算法实现了全息光栅的优化设计.结果表明,利用遗传算法可以简化求解过程,降低最优参量的误差,并克服局部极值的问题,明显优于阻尼最小二乘法.A grating is a key component of the monochromators,and its aberration correcting ability is a decisive factor for the properties of the monochromators.In this paper,a spot diagram method with the genetic algorithm is studied.The genetic algorithm is applied to optimize the merit function for its strong ability to search the extremum of nonlinear functions.A comparison between this method and the damped least squares method is given,and the result shows that the proposed method is much superior to the damped least squares method.

关 键 词：全息光栅 点列图 遗传算法 优化设计 

分 类 号：O439[机械工程—光学工程]