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arXiv 1903.09286physics.optics
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利用相位空间光调制器产生大规模均匀光学聚焦阵列

Large-Scale Uniform Optical Focus Array Generation with a Phase Spatial Light Modulator

Donggyu Kim, Alexander Keesling, Ahmed Omran, Harry Levine, Hannes Bernien, Markus Greiner, Mikhail D. Lukin, Dirk R. Englund

摘要:

提出了一种新的大尺寸均匀光学聚焦阵列(LOFA)的产生方法。通过识别和消除不需要的相位旋转迭代傅里叶变换算法(IFTA),我们的方法迅速产生高度均匀的LOFA的计算机生成的全息图。新算法也显示出更快的补偿系统引起的LOFA强度不均匀性比传统的IFTA。经过三个自适应校正步骤后,我们证明了由$\mathcal{O}(10^3)$光学焦点组成的LOFA具有$> 98\ \%$强度均匀性。

英文摘要:

We report a new method to generate uniform large-scale optical focus arrays (LOFAs). By identifying and removing undesired phase rotation in the iterative Fourier-transform algorithm (IFTA), our approach rapidly produces computer-generated holograms of highly uniform LOFAs. The new algorithm also shows faster compensation of system-induced LOFA intensity inhomogeneity than the conventional IFTA. After just three adaptive correction steps, we demonstrate LOFAs consisting of $\mathcal{O}(10^3)$ optical foci with $> 98\ \%$ intensity uniformity.

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