Rotational Population Measurement of Ultracold $^{85}$Rb$^{133}$Cs Molecules in the Lowest Vibrational Ground State
Zhong-Hua Ji1,2 , Zhong-Hao Li1,2 , Ting Gong1,2 , Yan-Ting Zhao1,2** , Lian-Tuan Xiao1,2 , Suo-Tang Jia1,2
1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 0300062 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006
Abstract ：We measure the rotational populations of ultracold $^{85}$Rb$^{133}$Cs molecules in the lowest vibrational ground state by a depletion spectroscopy and quantify the molecular production rate based on the measurement of single ion signal area. The $^{85}$Rb$^{133}$Cs molecules in the $X^{1}{\it \Sigma}^{+} (v=0)$ are formed from the short-range $(2)^{3}{\it \Pi}_{0^{+}}(v=10,J=0)$ molecular state. A home-made external-cavity diode laser is used as the depletion laser to measure the rotational populations of the formed molecules. Based on the determination of single ion signal, the production rates of molecules in the $J=0$ and $J=2$ rotational levels are derived to be 4800 mole/s and 7200 mole/s, respectively. The resolution and quantification of molecules in rotational states are facilitative for the manipulation of rotational quantum state of ultracold molecules.
收稿日期: 2017-07-14
出版日期: 2017-09-27
:
33.80.-b
(Photon interactions with molecules)
37.10.Mn
(Slowing and cooling of molecules)
32.80.-t
(Photoionization and excitation)
33.15.Mt
(Rotation, vibration, and vibration-rotation constants)
[1] Krems R, Friderich B and Stwalley W C 2009 Cold Molecules: Theory, Experiment, Applications (New York: CRC Press) [2] Sage J M, Sainis S, Bergeman T and DeMille D 2005 Phys. Rev. Lett. 94 203001 [3] Ospelkaus S, Ni K K, Quéméner G, Neyenhuis B, Wang D, de Miranda M H G, Bohn J L, Ye J and Jin D S 2010 Phys. Rev. Lett. 104 030402 [4] Molony P K, Gregory P D, Ji Z, Lu B, Köppinger M P, Le Sueur C R, Blackley C L, Hutson J M and Cornish S L 2014 Phys. Rev. Lett. 113 255301 [5] Takekoshi T, Reichsöllner L, Schindewolf A, Hutson J M, Le Sueur C R, Dulieu O, Ferlaino F, Grimm R and Nägerl H C 2014 Phys. Rev. Lett. 113 205301 [6] Park J W, Will S A and Zwierlein M W 2015 Phys. Rev. Lett. 114 205302 [7] Guo M, Zhu B, Lu B, Ye X, Wang F, Vexiau R, Bouloufa-Maafa N, Quéméner G, Dulieu O and Wang D 2016 Phys. Rev. Lett. 116 205303 [8] Banerjee J, Rahmlow D, Carollo R, Bellos M, Eyler E E, Gould P L and Stwalley W C 2012 Phys. Rev. A 86 053428 [9] Zabawa P, Wakim A, Haruza M and Bigelow N P 2011 Phys. Rev. A 84 061401 [10] Deiglmayr J, Grochola A, Repp M, Mörtlbauer K, Glück C, Lange J, Dulieu O, Wester R and Weidemüller M 2008 Phys. Rev. Lett. 101 133004 [11] Stevenson I C, Blasing D B, Chen Y P and Elliott D S 2016 Phys. Rev. A 94 062510 [12] McCarron D J, Cho H W, Jenkin D L, Kȯppinger M P and Cornish S L 2011 Phys. Rev. A 84 011603(R) [13] Gabbanini C and Dulieu O 2011 Phys. Chem. Chem. Phys. 13 18905 [14] Ji Z H, Zhang H S, Wu J Z, Yuan J P, Yang Y, Zhao Y T, Ma J, Wang L R, Xiao L T and Jia S T 2012 Phys. Rev. A 85 013401 [15] Fioretti A and Gabbanini C 2013 Phys. Rev. A 87 054701 [16] Bouloufa-Maafa N, Aymar M, Dulieu O and Gabbanini C 2012 Laser Phys. 22 1502 [17] Bruzewicz C D, Gustavsson M, Shimasaki T and DeMille D 2014 New J. Phys. 16 023018 [18] Shimasaki T, Bellos M, Bruzewicz C D, Lasner Z and DeMille D 2015 Phys. Rev. A 91 021401(R) [19] Lee Y, Yoon Y, Lee S, Kim J T and Kim B 2008 J. Phys. Chem. A 112 7214 [20] Yuan J P, Zhao Y T, Ji Z H, Li Z H, Kim J, Xiao L T and Jia S T 2015 J. Chem. Phys. 143 224312 [21] Zhao Y T, Yuan J P, Li Z H, Ji Z H, Xiao L T and Jia S T 2015 Chin. Phys. Lett. 32 113301 [22] Li Z H, Ji Z H, Zhang X, Yuan J P, Zhao Y T, Xiao L T and Jia S T 2016 J. Phys. Soc. Jpn. 85 084301 [23] Fahs H, Allouche A R, Korek M and Aubert-Frėcon 2002 J. Phys. B 35 1501 [24] Korek M and Allouche A R 2001 J. Phys. B 34 3689 [25] Zhang Z J, Ji Z H, Li Z H, Yuan J P, Zhao Y T, Xiao L T and Jia S T 2015 Chin. Opt. Lett. 13 110201 [26] Ji Z H, Zhang R R, Ma J, Dong L, Zhao Y T and Jia S T 2009 Chin. J. Lasers 36 804 [27] Zhang H S, Ji Z H, Yuan J P, Zhao Y T, Ma J, Wang L R, Xiao L T and Jia S T 2011 Chin. Phys. B 20 123702 [28] Fellow C E, Gutterres R F, Campos A P C, Vergès and Amiot C 1999 J. Mol. Spectrosc. 197 19 [29] Wang L R, Ji Z H, Yuan J P, Yang Y, Zhao Y T, Ma J, Xiao L T and Jia S T 2012 Chin. Phys. B 21 113402 [30] Fioretti A, Amiot C, Dion C M, Dulieu O, Mazzoni M, Smirne and Gabbanini C 2011 Eur. Phys. J. D 15 189 [31] Comparat D, Drag C, Laburthe Tolra B, Fioretti A, Pillet P, Crubellier A, Dulieu O and Masnou-Seeuws F 1999 Eur. Phys. J. D 11 59
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
.
[8]
.
[9]
Muhammad Haneef, Saleh Mohammad, Jehan Akbar, Suneela Arif, Muhammad Zahir, Humayun Khan. Detached Electron Spectra from H−
[10]
Muhammad Haneef*,Saleh Mohammad,Suneela Arif,Jehan Akbar,Nasrullah Shah,Imran Ullah. Photodetachment of Di-atomic Negative Ion H2 −
[11]
XIA Yong,YIN Ya-Ling,JI Xiang,YIN Jian-Ping**. A Multistage Optical Stark Decelerator for use with a Pulsed Molecular Beam with an Electrostatic Storage Ring
[12]
A. Rahman,Iftikhar Ahmad**,A. Afaq,H. J. Zhao. Photodetachment of a Homo-Nuclear Linear Tetra-Atomic Negative Molecular Ion
[13]
YU Jie;ZHANG Wei YANG Jing;CONG Shu-Lin**
. Field-Free Molecular Orientation with a Few Half-Cycle Pulses in the Terahertz Region
[14]
A. Rahman;Iftikhar Ahmad;**;A. Afaq;M. Haneef;H. J. Zhao
. Investigation of Linear Tetra-Atomic Negative Ion by Photodetached-Electron Spectra
[15]
A. Rahman;Iftikhar Ahmad*;A. Afaq;M. Haneef
. Interferences in Photodetached Electron Spectra from a Linear Tetra-Atomic Negative Ion
2017, Vol. 34 
