| One- and Two-Dimensional Arrays of Double-Well Optical Traps for Cold Atoms or Molecules |
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| 作者姓名： | 纪宪明 印建平 |
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| 作者单位： | [1]KeyLaboratoryforOpticalandMagneticResonanceSpectroscopy,EastChinaNormalUniversity,Shanghai200062／／DepartmentofPhysics,NantongUniversity,Nantong226007 [2]KeyLaboratoryforOpticalandMagneticResonanceSpectroscopy,EastChinaNormalUniversity,Shanghai200062 |
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| 摘 要： | We propose a novel scheme to form one- and two-dimensional arrays of double-well optical dipole traps for cold atoms (or molecules) by using an optical system composed of a binary π-phase grating and a lens illuminated by a plane light wave, and study the relationship between the maximum intensity Imax of each optical well (or the maximum trapping potential Umax for ^85Rb atoms) and the relative aperture β (= α/f) of the lens. We also calculate the intensity gradients of each optical well and their curvatures, and estimate the spontaneous photon-scattering rate of trapped atom in each well, including Rayleigh and Raman scattering rates. Our study shows that the proposed 1D and 2D arrays of double-well traps can be used to prepare 1D and 2D novel optical lattices with cold atoms (or molecules), or form an all-optically integrated atom optical chip, or even to realize an array of all-optical double-well atomic (or molecular) Bose-Einstein condensates by optical-potential evaporative cooling, and so on.
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| 关 键 词： | 二维排列 双井光学捕获 无放射性原子 相位光栅 玻色-爱因斯坦浓缩 |
One- and Two-Dimensional Arrays of Double-Well Optical Traps for Cold Atoms or Molecules |
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| JI Xian-Ming,YIN Jian-Ping.One- and Two-Dimensional Arrays of Double-Well Optical Traps for Cold Atoms or Molecules[J].Chinese Physics Letters,2004,21(12):2399-2402. |
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| Authors: | JI Xian-Ming YIN Jian-Ping |
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| Affiliation: | Key Laboratory for Optical and Magnetic Resonance Spectroscopy, East China Normal University, Shanghai 200062
Department of Physics, Nantong University, Nantong 226007 |
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| Abstract: | |
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| Keywords: | 32 80 Pj 32 80 Lg 33 80 Ps 42 50 Vk |
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