| 用于光束整形的衍射光学元件设计的混合算法 |
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| 引用本文： | 庞辉,应朝福,范长江,林培秋,吴浩伟.用于光束整形的衍射光学元件设计的混合算法[J].光子学报,2010,39(6). |
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| 作者姓名： | 庞辉 应朝福 范长江 林培秋 吴浩伟 |
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| 作者单位： | 浙江师范大学,信息光学研究所,浙江,金华,321004 |
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| 基金项目： | 国家自然科学基金，浙江省自然科学基金 |
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| 摘 要： | 提出了一种用于衍射光学元件优化设计的混合遗传迭代爬山算法,该算法将迭代量化傅里叶变换算法融入到遗传算法中,然后在整体遗传算法结束后,对找到的当前最优解再用爬山法进行局部寻优,从而得到最优的衍射光学元件表面相位分布.用该混合方法设计了衍射光学元件,可以将入射的高斯光束整形成方形的均匀光斑.模拟结果表明:该混合算法具有收敛速度快、设计准确度高等优点.相比于其它设计方法,本文提出的方法能较好地改善整形效果,特别适用于光束整形的衍射元件设计.
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| 关 键 词： | 衍射光学元件 遗传算法 混合算法 光束整形 |
Design Diffractive Optical Elements for Beam Shaping with Hybrid Algorithm |
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| PANG Hui,YING Chao-fu,FAN Chang-jiang,LIN Pei-qiu,WU Hao-wei.Design Diffractive Optical Elements for Beam Shaping with Hybrid Algorithm[J].Acta Photonica Sinica,2010,39(6). |
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| Authors: | PANG Hui YING Chao-fu FAN Chang-jiang LIN Pei-qiu WU Hao-wei |
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| Institution: | PANG Hui,YING Chao-fu,FAN Chang-jiang,LIN Pei-qiu,WU Hao-wei(Institute of Information Optics,Zhejiang Normal University,Jinhua,Zhejiang 321004,China) |
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| Abstract: | A novel algorithm,which combines a genetic algorithm with an iterative quantization fourier transform algorithm and hill-climbing algorithm,is presented to design diffractive optical elements for beam shaping.This hybrid algorithm firstly takes the genetic algorithm which combines the iterative soft quantization fourier transform algorithm to obtain a solution.Secondly,the hill-climbing algorithm is applied to search the local best solution around the solution derived firstly.It can acquire good efficiency ... |
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| Keywords: | Diffractive optical element Genetic algorithm Hybrid algorithm Beam shaping |
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