Microwave spectroscopy measurement of ultracold ground state molecules produced via short-range photoassociation

被引：6

作者：

Li, Zhonghao ^{[1
,2
]}

Ji, Zhonghua ^{[1
,2
]}

Gong, Ting ^{[1
,2
]}

Cao, Juanjuan ^{[1
,2
]}

Zhao, Yanting ^{[1
,2
]}

Xiao, Liantuan ^{[1
,2
]}

Jia, Suotang ^{[1
,2
]}

机构：

[1] Shanxi Univ, Inst Laser Spect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Shanxi, Peoples R China

[2] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China

来源：

OPTICS EXPRESS | 2018年 / 26卷 / 03期

基金：

中国国家自然科学基金;

关键词：

RBCS MOLECULES;

D O I：

10.1364/OE.26.002341

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The high-resolution microwave (MW) spectroscopy is employed to measure the rotational structures of ultracold (RbCs)-Rb-85-Cs-133 molecules prepared in the X-1 Sigma(+) (v = 0) ground state. These ground-state molecules are created using short-range photoassociation (PA) followed by the spontaneous emission. Using a combination of continuous-wave (CW) depletion spectroscopy and photoionization (PI) technique, we obtain the MW spectroscopy by coupling the neighboring rotational levels of ground-state molecules. Based on the frequency spacing obtained from the MW spectroscopy, the rotational constant of X-1 Sigma(+) (v = 0) can be accurately determined with the rigid rotor model. The precision of the measurement by MW spectroscopy is found to be 3 orders of magnitude higher than the CW depletion spectroscopy. Our scheme provides a simple and highly accurate method for the measurement of molecular structure. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：2341 / 2348

页数：8

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