Fast algorithms for generating binary holograms

Fast algorithms for generating binary holograms
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生成二元全息图的快速算法

DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
A. Kuhn
A. Kuhn
中科院分区:
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文献类型:
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作者:
D. Stuart;O. Barter;A. Kuhn

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我们描述了三种生成二值全息图的算法。我们的方法经过优化,可生产用于捕获颗粒的大量紧密聚焦的光镊。二值全息图使我们能够使用数字镜面器件(DMD)作为显示元件,这比其他替代方案要快得多。我们描述了如何使用二元振幅全息图来校正由光学像差引起的相位误差。此外,我们还比较了周期性和任意陷阱排列的算法的速度和准确性,这使得人们可以根据情况选择理想的方案。
We describe three algorithms for generating binary-valued holograms. Our methods are optimised for producing large arrays of tightly focussed optical tweezers for trapping particles. Binary-valued holograms allow us to use a digital mirror device (DMD) as the display element, which is much faster than other alternatives. We describe how our binary amplitude holograms can be used to correct for phase errors caused by optical aberrations. Furthermore, we compare the speed and accuracy of the algorithms for both periodic and arbitrary arrangements of traps, which allows one to choose the ideal scheme depending on the circumstances.
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