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arXiv 0804.2133physics.optics
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离轴和相移全息术中的噪声和混叠

Noise and aliases in off-axis and phase-shifting holography

Michel Gross, Michael Atlan, Emilie Absil

摘要:

我们比较了离轴和相移全息术在噪声和混叠去除方面的各自效率。比较是通过分析全息图的美国空军目标背光与激光照明,记录与电荷耦合器件相机。我们表明,它是必不可少的,以消除LO光束噪声,特别是在低照度水平。

英文摘要:

We have compared the respective efficiencies of off-axis and phase-shifting holography in terms of noise and aliases removal. The comparison is made by analyzing holograms of an USAF target backlit with laser illumination, recorded with a charge-coupled device camera. We show that it is essential to remove the LO beam noise, especially at low illumination levels.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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