Optical Guiding of Trapped Atoms by a Blue-Detuned Hollow Laser Beam in the Horizontal Direction
JIANG Kai-Jun1,2,3, LI Ke1,2,3, WANG Jin1,3, ZHAN Ming-Sheng1,3
1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071
2Graduate School of Chinese Academy of Sciences, Beijing 100080
3Centre for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071
Optical Guiding of Trapped Atoms by a Blue-Detuned Hollow Laser Beam in the Horizontal Direction
1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071
2Graduate School of Chinese Academy of Sciences, Beijing 100080
3Centre for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071
Abstract： Optical guiding of 85Rb atoms in a magneto-optical trap (MOT) by a blue-detuned horizontal hollow laser beam is demonstrated experimentally. The guiding efficiency and the velocity distribution of the guided atoms are found to have strong dependence on the detuning of the guiding laser. In particular, the optimum guiding occurs when the blue detuning of the hollow laser beam is approximately equal to the hyperfine structure splitting of the 85Rb ground states, in good agreement with the theoretical analysis based on a three-level model.
JIANG Kai-Jun;;LI Ke;;WANG Jin;ZHAN Ming-Sheng;. Optical Guiding of Trapped Atoms by a Blue-Detuned Hollow Laser Beam in the Horizontal Direction[J]. 中国物理快报, 2005, 22(2): 323-327.
JIANG Kai-Jun, , LI Ke, , WANG Jin, ZHAN Ming-Sheng,. Optical Guiding of Trapped Atoms by a Blue-Detuned Hollow Laser Beam in the Horizontal Direction. Chin. Phys. Lett., 2005, 22(2): 323-327.
2005, Vol. 22 
