A high-efficiency and accuracy holographic tandem method for arbitrary beam shaping

A high-efficiency and accuracy holographic tandem method for arbitrary beam shaping
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一种高效、准确的任意光束整形全息串联方法

DOI:
10.1016/j.optcom.2012.12.018
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发表时间:
2013-05
影响因子:
2.4
通讯作者:
Liu, Xiang
Liu, Xiang
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Wang, Dong;Zhang, Jian;Zhang, HongXin;Liu, Xiang

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提出了一种产生双全息图的全息串接方法,将中心对称的激光光束衍射成任意光强分布的光束。利用衍射效率(DE)和均方根误差(RMSE)对该方法的性能进行了定量评价。模拟结果表明,92%以上的入射激光能量集中在预期的光强分布范围内。重建的光强分布与目标分布吻合较好,在百分比水平上有一定的误差。该技术不仅为激光聚变和激光精密加工提供了一种非常方便的光束整形方法,而且为产生原子陷阱和光学图像的任意光强分布提供了一条潜在的途径。
A holographic tandem method is proposed for creating double-holograms to diffract a central symmetric laser beam into a beam with arbitrary intensity distribution. The performance of the method is quantitatively evaluated using diffraction efficiency (DE) and root mean square error (RMSE). Simulation results indicate that more than 92% of the incident laser energy is concentrated into the predicted intensity distribution within the desired region. And the reconstructed intensity distribution agrees well with the target distribution with a fractional error at the percent level. The technique proposed in this paper provides not only a promising convenient beam shaping for laser fusion and laser precision machining but also a potential path to generate arbitrary intensity distribution for atom traps and optical image.
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