Efficient generation of optical bottle beams
Efficient generation of optical bottle beams
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DOI：
10.1515/nanoph-2021-0243
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发表时间：
2021-05
期刊：
影响因子：
7.5
通讯作者：
Yuzhe Xiao;Zhaoning Yu;R. Wambold;H. Mei;G. Hickman;R. Goldsmith;M. Saffman;M. Kats
中科院分区：
文献类型：
--
作者：
Yuzhe Xiao;Zhaoning Yu;R. Wambold;H. Mei;G. Hickman;R. Goldsmith;M. Saffman;M. Kats
摘要光学空心光束可以用来囚禁原子和小的低折射率粒子。我们介绍了一个品质因数（FoM）的光学瓶光束，特别是在光阱的上下文中，并使用它来比较光学瓶光束陷阱由三种不同的方法。使用该FoM和优化算法，我们确定了基于高斯光束照射超颖表面的光学瓶光束陷阱，其在功率效率方面上级现有方法。我们数值演示了一个硅超颖表面创建一个光学瓶束陷阱。
Abstract Optical bottle beams can be used to trap atoms and small low-index particles. We introduce a figure of merit (FoM) for optical bottle beams, specifically in the context of optical traps, and use it to compare optical bottle-beam traps obtained by three different methods. Using this FoM and an optimization algorithm, we identified the optical bottle-beam traps based on a Gaussian beam illuminating a metasurface that are superior in terms of power efficiency than existing approaches. We numerically demonstrate a silicon metasurface for creating an optical bottle-beam trap.