Chip-scale molecule trapping by a blue-detuned metasurface hollow beam

Chip-scale molecule trapping by a blue-detuned metasurface hollow beam
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蓝色失谐超表面空心束捕获芯片级分子

DOI:
10.1088/2040-8986/ab7aea
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发表时间:
2020-03
期刊:
影响因子:
2.1
通讯作者:
Yin Jianping
Yin Jianping
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Yu Haiyu;Mao Zhixiang;Li Junyi;Ye Yuer;Yin Yaling;Xia Yong;Yin Jianping

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我们提出了一种利用亚表面光栅来捕获冷分子的紧聚焦空心光束,它具有具有聚焦和完全相消干涉功能的混合位相。从理论上详细研究了不同结构参数下的空心束在自由空间中的光强分布。比较了离散位相和连续位相对调制光场光强分布的影响。我们的理论研究表明,这种蓝失谐光束可以提供很深的势能来捕获冷分子,具有低的光子散射率和长的陷阱寿命。我们的研究表明,基于亚表面的光学芯片适用于捕获分子,可以成为建立强大的量子实验室的理想平台。
We propose a tightly focused hollow beam to trap cold molecules by using a metasurface grating, which has a hybrid phase with focusing and completely destructive interference functions. The intensity distributions of the hollow beam in free space concerning different structural parameters of the grating are theoretically studied in detail. The influences of both the discrete and continuous phases of the grating on the intensity distribution of the modulated optical field are compared. Our theoretical study shows that such a blue-detuned beam can provide a deep potential to trap cold molecules with a low photon scattering rate and a long trap lifetime. Our studies suggest that the metasurface-based optical chip is applicable to trap molecules and can be an ideal platform for building a robust quantum laboratory.
DOI: 10.1021/nl051013j
发表时间: 2005-09-01
期刊: NANO LETTERS
影响因子: 10.8
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