Volume 3Issue 2
Apr. 2010
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CHENG Yong-jie, QIU Ying, HE Jun, ZHANG Tian-cai, WANG Jun-min. Calculation of AC Stark shift of 5S1/2 and 5P3/2 states of Rb atoms in optical dipole trap[J]. Chinese Optics, 2010, 3(2): 119-125.
Citation: CHENG Yong-jie, QIU Ying, HE Jun, ZHANG Tian-cai, WANG Jun-min. Calculation of AC Stark shift of 5S1/2and 5P3/2states of Rb atoms in optical dipole trap[J].Chinese Optics, 2010, 3(2): 119-125.

Calculation of AC Stark shift of 5S1/2and 5P3/2states of Rb atoms in optical dipole trap

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  • Corresponding author:CHENG Yong-jie
  • Received Date:11 Jan 2010
  • Rev Recd Date:13 Mar 2010
  • Publish Date:20 Apr 2010
  • Based on the two-level and multi-level models, the AC Stark shift of the 5S1/2 and 5P3/2 states of 87Rb atoms in an Optical Dipole Trap(ODT) formed by a strongly-focused single Gaussian laser beam is analyzed and calculated. For performance of molasses cooling of 87Rb atoms in the Far-off-resonance Trap(FORT) by 852 nm Gaussian laser beam, the AC Stark shift of 5S1/2F=2-5P3/2F'=3 cycling transition for cooling is also calculated, results show that the frequency shift has an important impact on the molasses cooling process. Furthermore, the AC Stark shift of 87Rb 5S1/2|F=2,|mF=2〉 and 5P3/2|F'=3,|mF=3〉 states versus the wavelength of the ODT laser is analyzed, which shows that there is no magic wavelength for 5S1/2-5P3/2 transition of 87Rb atoms in the red-off-resonance condition.

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