超冷铷铯极性分子振转光谱的实验研究

杨艳; 姬中华; 元晋鹏; 汪丽蓉; 赵延霆; 马杰; 肖连团; 贾锁堂

doi:10.7498/aps.61.213301

摘要

利用激光冷却俘获技术在双暗磁光阱中获得高密度的超冷铷原子和铯原子, 通过光缔合方法制备超冷铷铯极性分子. 采用共振增强双光子电离技术探测基三重态a3∑+的铷铯分子, 产率约为104/s. 通过改变缔合光频率, 获得(2)0+, (3)0-, (2)0-等分子态的高分辨振转光谱, 拟合得到相应的转动常数分别为0.00349 cm-1, 0.00649 cm-1, 0.00372 cm-1.

关键词:

Ultracold polar RbCs molecules are produced via photoassociation in a dual dark-SPOT magneto-optical trap, in which ultracold rubidium and cesium atoms with high densities are formed by laser cooling and trapping. The a3∑+ triplet metastable state ultracold RbCs molecules with 104/s production rate are detected using resonance-enhanced two-photon ionization. The ultra-high resolution rovibrational spectra of (2)0+, (3)0- and (2)0- rovibrational states are observed by scanning the photoassociation laser frequency. The rotational constants of (2)0+, (3)0- and (2)0- vibrational states are 0.00349 cm-1, 0.00649 cm-1 and 0.00372 cm-1 by fitting respectively.

Keywords:

作者及机构信息

1.
量子光学与光量子器件国家重点实验室, 山西大学激光光谱实验室, 太原 030006

基金项目: 国家重点基础研究发展计划(批准号: 2012CB921603)、国家国际科技合作专项(批准号: 2011DFA12490)、国家自然科学基金(批准号: 10934004, 60978018, 61008012, 60808009, 61078001, 60978001)、国家基金委创新研究群体(批准号: 61121064)、山西省国际合作项目 (批准号: 2011081030)和山西省自然科学基金(批准号: 2011011004 )资助的课题.

Authors and contacts

1.
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory, Shanxi University, Taiyuan 030006, China

Funds: Project supported by the National Basic Research Program of China (Grant No. 2012CB921603), International S & T Cooperation Program of China (Grant No. 2011DFA12490), National Natural Science Foundation of China (Grant Nos. 10934004, 60978018, 61008012, 60808009 , 61078001, 60978001), Science Fund for Creative Research Groups of the National Natural Science Foundation of China (Grant No. 61121064), International S & T Cooperation Program of Shanxi Province, China (Grant No. 2011081030) and National Natural Science Foundation of Shanxi Province, China (Grant No. 2011011004).

参考文献

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[15]	Haimberger C, Kleinert J, Bhattacharya M, Bigelow N P 2004 Phys. Rev. A 70 021402
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[17]	Ridinger A, Chaudhuri S, Salez T, Fernandes D R, Bouloufa N, Dulieu O, Salomon C, Chevy F 2011 Eur. Phys. Lett. 96 33001
[18]	Ji Z H, Zhang H S, Wu J Z, Yuan J P, Yang Y G, Zhao Y T, Ma J, Wang L R, Xiao L T, Jia S T 2012 Phys. Rev. A 85 013401
[19]	Shi Z Y, Qi R, Zhai H 2012 Phys. Rev. A 85 020702
[20]	Ji Z H, Zhang H S, Wu J Z, Yuan J P, Zhao Y T, Ma J, Wang L R, Xiao L T, Jia S T 2011 Chin. Phys. Lett. 28 083701
[21]	Allouche A R, Korek M, Fakherddin K, Chaalan A, Dagher M, Taher F, Aubert-Frécon M 2000 J. Phys. B 33 2307
[22]	Fahs H, Allouche A R, Korek M, Aubert-Frécon M 2002 J. Phys. B 35 1501
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[24]	Townsend C G, Edwards N H, Zetie K P, Cooper C J, Rink J, Foot C J 1996 Phys. Rev. A 53 1702
[25]	Yoon Y, Lee Y, Kim T, Ahn J S, Jung Y, Kim B, Lee S 2001 J. Chem. Phys. 114 8926
[26]	Kerman A J, Sage J M, Sainis S, Bergeman T, DeMille D 2004 Phys. Rev. Lett. 92 033004
[27]	Zhang H S, Ji Z H, Yuan J P, Zhao Y T, Ma J, Wang L R, Xiao L T, Jia S T 2011 Chin. Phys. B 20 123702
[28]	Lysebo M, Veseth L 2008 Phys. Rev. A 77 032721

施引文献

[1]	Wang L R, Ma J, Zhang L J, Xiao L T, Jia S T 2007 Acta Phys. Sin. 56 6373 (in Chinese) [汪丽蓉, 马杰, 张临杰, 肖连团, 贾锁堂 2007 56 6373]
[2]	Wang Y, Dong D Z, Li W Y, Feng E Y, Cui Z F 2009 Acta Phys. Sin. 58 6913 (in Chinese) [王悦, 董德智, 李伟艳, 凤尔银, 崔执凤 2009 58 6913]
[3]	Rieger T, Junglen T, Rangwala S A, Pinkse P W H, Rempe G 2005 Phys. Rev. Lett. 95 173002
[4]	Elena K, Bragdon T, Robin C, Yelin S F 2012 Phys. Rev. A 85 012328
[5]	Dima E, Thierry L, Wieland S, Bretislav F, John M D 2002 Phys. Rev. A 66 043401
[6]	Joop J G, Jochen K, Steven H, Nicolas V 2006 Phys. Rev. A 73 063410
[7]	Papp S B, Wieman C E 2006 Phys. Rev. Lett. 97 180404
[8]	Jones K M, Eite T, Paul D L, Paul S J 2006 Rev. Mod. Phys. 78 483
[9]	Thorsheim H R, Weiner J, Julienne P S 1987 Phys. Rev. Lett. 58 2420
[10]	Lett P D, Helmerson K, Philips W D, Ratliff L P, Rolston S L, Wagshul M E 1993 Phys. Rev. Lett. 71 2200
[11]	Miller J D, Cline R A, Heinzen D J 1993 Phys. Rev. Lett. 71 2204
[12]	Nikolov A N, Eyler E E, Wang X T, Li J, Wang H, Stwalley W C, Gould P L 1999 Phys. Rev. Lett. 82 703
[13]	Wang L R, Ma J, Li C Y, Zhao J M, Xiao L T, Jia S T 2007 Appl. Phys. B 98 53
[14]	Deiglmayr J, Grochola A, Repp M, Mörtlbauer K, Glück C, Lange J, Dulieu O, Wester R, Weidemüller M 2008 Phys. Rev. Lett. 101 133004
[15]	Haimberger C, Kleinert J, Bhattacharya M, Bigelow N P 2004 Phys. Rev. A 70 021402
[16]	Wang D, Qi J, Stone M F, Nikolayeva O, Wang H, Hattaway B, Gensemer S D, Gould P L, Eyler E E, Stwalley W C 2004 Phys. Rev. Lett. 93 243005
[17]	Ridinger A, Chaudhuri S, Salez T, Fernandes D R, Bouloufa N, Dulieu O, Salomon C, Chevy F 2011 Eur. Phys. Lett. 96 33001
[18]	Ji Z H, Zhang H S, Wu J Z, Yuan J P, Yang Y G, Zhao Y T, Ma J, Wang L R, Xiao L T, Jia S T 2012 Phys. Rev. A 85 013401
[19]	Shi Z Y, Qi R, Zhai H 2012 Phys. Rev. A 85 020702
[20]	Ji Z H, Zhang H S, Wu J Z, Yuan J P, Zhao Y T, Ma J, Wang L R, Xiao L T, Jia S T 2011 Chin. Phys. Lett. 28 083701
[21]	Allouche A R, Korek M, Fakherddin K, Chaalan A, Dagher M, Taher F, Aubert-Frécon M 2000 J. Phys. B 33 2307
[22]	Fahs H, Allouche A R, Korek M, Aubert-Frécon M 2002 J. Phys. B 35 1501
[23]	Wang C C, Killinger D K 1979 Phys. Rev. A 20 1495
[24]	Townsend C G, Edwards N H, Zetie K P, Cooper C J, Rink J, Foot C J 1996 Phys. Rev. A 53 1702
[25]	Yoon Y, Lee Y, Kim T, Ahn J S, Jung Y, Kim B, Lee S 2001 J. Chem. Phys. 114 8926
[26]	Kerman A J, Sage J M, Sainis S, Bergeman T, DeMille D 2004 Phys. Rev. Lett. 92 033004
[27]	Zhang H S, Ji Z H, Yuan J P, Zhao Y T, Ma J, Wang L R, Xiao L T, Jia S T 2011 Chin. Phys. B 20 123702
[28]	Lysebo M, Veseth L 2008 Phys. Rev. A 77 032721

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