High resolution photoassociation spectra of an ultracold Cs2 long-range 0u+ (6S1/2+6P1/2) state

doi:10.1088/1674-1056/22/9/093301

中国物理B ›› 2013, Vol. 22 ›› Issue (9): 93301-093301.doi: 10.1088/1674-1056/22/9/093301

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

High resolution photoassociation spectra of an ultracold Cs₂ long-range 0_u⁺ (6S_1/2+6P_1/2) state

陈鹏, 李玉清, 张一驰, 武寄洲, 马杰, 肖连团, 贾锁堂

State Key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory, Shanxi University, Taiyuan 030006, China

收稿日期:2013-03-25 修回日期:2013-05-30 出版日期:2013-07-26 发布日期:2013-07-26
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2012CB921603), the National High Technology Research and Development Program of China (Grant No. 2011AA010801), the National Natural Science Foundation of China (Grant Nos. 61008012 and 10934004), the International Science and Technology Cooperation Program of China (Grant No. 2001DFA12490), the Project for Excellent Research Team of the National Natural Science Foundation of China (Grant No. 61121064), and the New Teacher Fund of the Ministry of Education of China (Grant No. 20101401120004).

High resolution photoassociation spectra of an ultracold Cs₂ long-range 0_u⁺ (6S_1/2+6P_1/2) state

Chen Peng (陈鹏), Li Yu-Qing (李玉清), Zhang Yi-Chi (张一驰), Wu Ji-Zhou (武寄洲), Ma Jie (马杰), Xiao Lian-Tuan (肖连团), Jia Suo-Tang (贾锁堂)

State Key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory, Shanxi University, Taiyuan 030006, China

Received:2013-03-25 Revised:2013-05-30 Online:2013-07-26 Published:2013-07-26
Contact: Ma Jie E-mail:mj@sxu.edu.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2012CB921603), the National High Technology Research and Development Program of China (Grant No. 2011AA010801), the National Natural Science Foundation of China (Grant Nos. 61008012 and 10934004), the International Science and Technology Cooperation Program of China (Grant No. 2001DFA12490), the Project for Excellent Research Team of the National Natural Science Foundation of China (Grant No. 61121064), and the New Teacher Fund of the Ministry of Education of China (Grant No. 20101401120004).

摘要/Abstract

摘要： In this paper, ultracold cesium molecules are formed through photoassociation technology, which is carried out in a magneto-optical trap. High resolution photoassociaion spectra with the rotational progressions up to J=7 are obtained. Three rovibrational levels of the long-range 0_u⁺ state of Cs₂ below the (6S_1/2+6P_1/2) dissociation limit are specifically investigated. By fitting their binding energy intervals to the non-rigid rotational model, the rotational constant of the long-range 0_u⁺ state is determined. A proportional dependence of the value of the rotational constant on the vibrational quantum number is demonstrated.

关键词: ultracold molecules, photoassociation, trap-loss spectrum, long-range molecular coefficient

Abstract: In this paper, ultracold cesium molecules are formed through photoassociation technology, which is carried out in a magneto-optical trap. High resolution photoassociaion spectra with the rotational progressions up to J=7 are obtained. Three rovibrational levels of the long-range 0_u⁺ state of Cs₂ below the (6S_1/2+6P_1/2) dissociation limit are specifically investigated. By fitting their binding energy intervals to the non-rigid rotational model, the rotational constant of the long-range 0_u⁺ state is determined. A proportional dependence of the value of the rotational constant on the vibrational quantum number is demonstrated.

Key words: ultracold molecules, photoassociation, trap-loss spectrum, long-range molecular coefficient

中图分类号: (Vibration-rotation analysis)

33.20.Vq

33.15.Pw (Fine and hyperfine structure) 31.10.+z (Theory of electronic structure, electronic transitions, and chemical binding)

陈鹏, 李玉清, 张一驰, 武寄洲, 马杰, 肖连团, 贾锁堂. High resolution photoassociation spectra of an ultracold Cs₂ long-range 0_u⁺ (6S_1/2+6P_1/2) state[J]. 中国物理B, 2013, 22(9): 93301-093301.

Chen Peng (陈鹏), Li Yu-Qing (李玉清), Zhang Yi-Chi (张一驰), Wu Ji-Zhou (武寄洲), Ma Jie (马杰), Xiao Lian-Tuan (肖连团), Jia Suo-Tang (贾锁堂). High resolution photoassociation spectra of an ultracold Cs₂ long-range 0_u⁺ (6S_1/2+6P_1/2) state[J]. Chin. Phys. B, 2013, 22(9): 93301-093301.

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High resolution photoassociation spectra of an ultracold Cs₂ long-range 0_u⁺ (6S_1/2+6P_1/2) state

High resolution photoassociation spectra of an ultracold Cs₂ long-range 0_u⁺ (6S_1/2+6P_1/2) state

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