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首页> 外文期刊>Journal of the Optical Society of America, B. Optical Physics >Generation of one- or two-dimensional arrays of hollow optical microtraps for cold atoms, molecules, or microparticles on a chip
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Generation of one- or two-dimensional arrays of hollow optical microtraps for cold atoms, molecules, or microparticles on a chip

机译:在芯片上生成冷原子,分子或微粒的一维或二维空心光学微阱阵列

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摘要

We propose a new scheme to form 1D or 2D arrays of hollow optical microtraps for cold atoms, molecules, or microscopy particles on a chip by using an optical system composed of a four-step phase grating and a 2D array of microlenses. We calculate the intensity distribution of the 2D array of the hollow optical microtraps and its optical potential for Rb-85 atoms and discuss its potential applications in atom and molecule optics. Our study shows that when our optical system is illuminated by a 1 W Ti:Sapphire laser, 10(3) hollow optical microtraps can be generated. Each optical microtrap has a small trapping volume and a high effective intensity, and its intensity gradient and the optical dipole potential for Rb-85 atoms can reach 167 mu K. Characteristic parameters of each optical microtrap can be changed by adjusting the parameters of our optical system, which can be used to satisfy real needs of various experiments to manipulate and control cold atoms, molecules, or microscopy particles. (c) 2008 Optical Society of America
机译:我们提出了一种新方案,通过使用由四步相位光栅和2D微透镜阵列组成的光学系统,在芯片上形成用于冷原子,分子或显微粒子的空心光学微阱的1D或2D阵列。我们计算了中空光学微陷阱的二维阵列的强度分布及其对Rb-85原子的光势,并讨论了其在原子和分子光学中的潜在应用。我们的研究表明,当我们的光学系统被1 W Ti:Sapphire激光器照射时,会产生10(3)个空心光学微陷阱。每个光学微阱的捕集体积小且有效强度高,并且其强度梯度和Rb-85原子的光学偶极电势可达到167μK。可通过调整我们的光学系统的参数来更改每个光学微阱的特征参数系统,可用于满足各种实验的实际需求,以操纵和控制冷原子,分子或显微镜颗粒。 (c)2008年美国眼镜学会

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