Study on four-step computer-generated hologram with same diffraction efficiency of the zeroth and first order

Study on four-step computer-generated hologram with same diffraction efficiency of the zeroth and first order
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零级和一级衍射效率相同的四步计算机全息图研究

DOI:
10.1117/1.3605314
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发表时间:
2011-08
影响因子:
1.3
通讯作者:
Guo, Peiji
Guo, Peiji
中科院分区:
工程技术4区
文献类型:
--
作者:
Ren, Jianfeng;Guo, Peiji

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根据衍射理论设计了一种四阶微结构计算全息图。结果表明,该计算全息图在零级衍射光和正一级衍射光的衍射效率基本相同,分别为38.51%和38.04%,两束光的光强均为入射光的76.55%。这种四步计算全息图可用于双计算全息图的离轴凸非球面镜干涉系统,且干涉图的信噪比足够高。
A type of computer-generated hologram (CGH) with 4-step microstructure is designed based on diffraction theory. Results show that this CGH has almost the same diffraction efficiency at zeroth diffractive order and positive first diffractive order, which are 38.51% and 38.04%, respectively, and the intensity of these two beams is 76.55% of incident beam. This type of 4-step CGH can be used in an off-axis convex aspherical mirror interferometric system with double CGHs, while the signal-to-noise ratio (SNR) of the interferogram is high enough.
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期刊: --
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