二元全息图的快速生成算法
Fast algorithms for generating binary holograms
摘要:
我们描述了三个算法生成二进制值全息图。我们的方法被优化用于生产用于捕获颗粒的紧密聚焦的光镊的大阵列。二值全息图允许我们使用数字反射镜设备(DMD)作为显示元件,这比其他替代品快得多。我们描述了如何我们的二进制振幅全息图可以用来校正光学像差所造成的相位误差。此外,我们比较的速度和精度的算法周期性和任意安排的陷阱,这使得人们可以选择理想的方案,根据情况。
英文摘要:
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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