| 二维光束整形的衍射光学元件设计 |
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| 引用本文： | 张艳,张静娟,司徒国海. 二维光束整形的衍射光学元件设计[J]. 量子电子学报, 2003, 20(6): 651-655 |
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| 作者姓名： | 张艳 张静娟 司徒国海 |
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| 作者单位： | 1. 中国科技大学研究生院,北京,100039;中国科学院研究生院,北京,100039
2. 中国科学院研究生院,北京,100039 |
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| 基金项目： | 国家自然科学基金(69977018) |
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| 摘 要： | 采用加权串行迭代算法(WSI)设计衍射光学元件(DOE)，将二维圆形高斯分布的激光光束分别整形为二维正方形和三角形的均匀光束，同时实现了光束形状改变及振幅分布均匀化的功能．模拟计算结果表明，用WSI设计得到的输出波形形状基本达到要求，转换到均匀区的能量效率分别达到95．3％、93．6％．
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| 关 键 词： | 二维光束整形 衍射光学元件 加权串行迭代算法 激光光束 均匀光束 |
| 文章编号： | 1007-5461(2003)06-0651-05 |
| 收稿时间： | 2002-12-20 |
| 修稿时间： | 2002-12-20 |
Two-dimensional Beam Shaping with Diffractive Optical Elements |
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| Zhang Yan,Zhang Jingjuan,Situ GuohaiThe Graduate School of University of Science , Technology of China,Beijing China , The Graduate School of the Chinese Academy of Sciences,Beijing China ). Two-dimensional Beam Shaping with Diffractive Optical Elements[J]. Chinese Journal of Quantum Electronics, 2003, 20(6): 651-655 |
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| Authors: | Zhang Yan Zhang Jingjuan Situ GuohaiThe Graduate School of University of Science & Technology of China Beijing China The Graduate School of the Chinese Academy of Sciences Beijing China ) |
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| Affiliation: | Zhang Yan,Zhang Jingjuan,Situ GuohaiThe Graduate School of University of Science & Technology of China,Beijing 100039 China , The Graduate School of the Chinese Academy of Sciences,Beijing 100039 China ) |
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| Abstract: | Diffractive optical elements are designed to implement the wavefront transformation from a two-dimensional circular-Gaussian beam to a two-dimensional flat-top square beam and a two-dimensional flat-top triangular beam respectively with the weighted serial iterative (WSI) algorithm, which realizes the transformation of beam-shape and the uniform distribution of the amplitude. The computed results indicate that the energy transformation efficiency is up to 95.3%, 93.6%, arid the output amplitude satisfies the need. |
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| Keywords: | diffractive optical elements two-dimensional beam shaping weighted serial iter- ative algorithm |
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