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基于自适应遗传算法部分相干光整形位相板的优化设计
  • 期刊名称：物理学报, 57(5), 3006-3010, 2008.
  • 时间：0
  • 分类：O242.23[理学—计算数学;理学—数学] O436.1[机械工程—光学工程;理学—光学;理学—物理]
  • 作者机构：[1]四川大学激光物理与化学研究所,成都610064
  • 相关基金：国家自然科学基金（批准号：10574097）资助的课题
  • 相关项目：激光光学中几个物理问题的研究
关键词： 自适应遗传算法, 光束整形, 部分相干光, 位相板, adaptive genetic algorithm, beam shaping, partially coherent beam, phase plate
中文摘要：

基于自适应遗传算法,对部分相干光整形的相位板做了优化设计.以高斯-谢尔模型（GSM）光束为例,推导出远场光强的解析表达式.最优化设计的位相板能将GSM光束变为平顶光束.数值计算例表明空间相干性对光束整形效果的影响.与已有工作相比较说明自适应遗传算法用于部分相干光整形的优点.

英文摘要：

Based on the adaptive genetic algorithm, the optimized design of phase plates for shaping partially coherent beams is performed. Taking the Gaussian Schell-mode beam as an example, the analytical expression for the far-field intefisity is derived and the phase plate capable of transforming GSM beams to flat-topped ones is optimized. The effect of spatial coherence on the beam shaping is illustrated by a numerial example. Comparison of the results with the previous work shows the advantages of the adaptive genetic algorithm in shaping partially coherenct beams.

同期刊论文项目
激光光学中几个物理问题的研究
期刊论文 88 获奖 2 著作 1
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