中国物理B ›› 2015, Vol. 24 ›› Issue (9): 93701-093701.doi: 10.1088/1674-1056/24/9/093701

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Fast thermometry for trapped atoms using recoil-induced resonance

赵延霆, 苏殿强, 姬中华, 张洪山, 肖连团, 贾锁堂   

  1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
  • 收稿日期:2015-01-10 修回日期:2015-03-30 出版日期:2015-09-05 发布日期:2015-09-05
  • 基金资助:

    Project supported by the National Basic Research Development 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. 61275209, 11304189, 61378015, and 11434007), and Program for Changjiang Scholars and Innovative Research Team in Universities of China (Grant No. IRT13076).

Fast thermometry for trapped atoms using recoil-induced resonance

Zhao Yan-Ting (赵延霆), Su Dian-Qiang (苏殿强), Ji Zhong-Hua (姬中华), Zhang Hong-Shan (张洪山), Xiao Lian-Tuan (肖连团), Jia Suo-Tang (贾锁堂)   

  1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
  • Received:2015-01-10 Revised:2015-03-30 Online:2015-09-05 Published:2015-09-05
  • Contact: Zhao Yan-Ting E-mail:zhaoyt@sxu.edu.cn
  • Supported by:

    Project supported by the National Basic Research Development 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. 61275209, 11304189, 61378015, and 11434007), and Program for Changjiang Scholars and Innovative Research Team in Universities of China (Grant No. IRT13076).

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摘要：

We have employed recoil-induced resonance (RIR) with linewidth on the order of 10 kHz to demonstrate the fast thermometry for ultracold atoms. We theoretically calculate the absorption spectrum of RIR which agrees well with the experimental results. The temperature of the ultracold sample derived from the RIR spectrum is T=84± 4.5 μK, which is close to 85 μK that measured by the method of time-of-flight absorption imaging. To exhibit the fast measurement advantage in applying RIR to the ultracold atom thermometry, we study the dependence of ultracold sample temperature on the trapping beam frequency detuning. This method can be applied to determine the translational temperature of molecules in photoassociation dynamics.

关键词: ultracold atoms, temperature measurement, recoil-induced resonance

Abstract:

We have employed recoil-induced resonance (RIR) with linewidth on the order of 10 kHz to demonstrate the fast thermometry for ultracold atoms. We theoretically calculate the absorption spectrum of RIR which agrees well with the experimental results. The temperature of the ultracold sample derived from the RIR spectrum is T=84± 4.5 μK, which is close to 85 μK that measured by the method of time-of-flight absorption imaging. To exhibit the fast measurement advantage in applying RIR to the ultracold atom thermometry, we study the dependence of ultracold sample temperature on the trapping beam frequency detuning. This method can be applied to determine the translational temperature of molecules in photoassociation dynamics.

Key words: ultracold atoms, temperature measurement, recoil-induced resonance

中图分类号:  (Mechanical effects of light on atoms, molecules, and ions)

  • 37.10.Vz
47.80.Fg (Pressure and temperature measurements) 82.53.Kp (Coherent spectroscopy of atoms and molecules)