Photoassociation spectra of ultracold （85）Rb2 molecule in 0u＋ long range state near the 5S（1/2）＋ 5P（1/2） asymptote

We investigate the high resolution photoassociation spectra of ~（85）Rb_2 molecules in 0~＋_u long range state below the（5S_（1/2）＋ 5P_（1/2）） asymptote. The ~（85）Rb atomic samples are trapped in a dark magneto–optical trap（MOT） and prepared in the dark state. With the help of trap loss technique, we ob...

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Bibliographic Details
Published in:中国物理B：英文版 2017, Vol.26 (8), p.152-156
Main Author: 赵国栋 苏殿强 姬中华 孟腾飞 赵延霆 肖连团 贾锁堂
Format: Article
Language:English
Subjects:
光谱
冷原子
分子
渐近线
状态
缔合
远程
高分辨率
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Summary:We investigate the high resolution photoassociation spectra of ~（85）Rb_2 molecules in 0~＋_u long range state below the（5S_（1/2）＋ 5P_（1/2）） asymptote. The ~（85）Rb atomic samples are trapped in a dark magneto–optical trap（MOT） and prepared in the dark state. With the help of trap loss technique, we obtain considerable photoassociation spectroscopy with rovibrational resolution, some of which have never been observed before. The observed spectrum is fitted by a rigid rotation model, and the rotational constants of ultracold ~（85）Rb_2 molecule in long range 0~＋_u are obtained for different vibrational states. By applying the Le Roy–Bernstein method, we assign the vibrational quantum numbers and derive C_3 coefficient, which is used to obtain the potential energy curve.
ISSN:1674-1056
2058-3834