中国物理B ›› 2006, Vol. 15 ›› Issue (1): 138-142.doi: 10.1088/1009-1963/15/1/022

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Autler--Townes doublet in novel sub-Doppler spectra with caesium vapour cell

王彦华, 杨海菁, 杜志静, 张天才, 王军民   

  1. State Key Laboratory of Quantum Optics and Quantum Optics Devices,and Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
  • 收稿日期:2005-07-07 修回日期:2005-09-30 出版日期:2006-01-20 发布日期:2006-01-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 60578018, 10434080 and 10374062),by the Key Scientific Program of Education Ministry of China (Grant No 204019), and by the Research Funds for Youth Academic Leaders of Shanxi Province, China.

Autler--Townes doublet in novel sub-Doppler spectra with caesium vapour cell

Wang Yan-Hua (王彦华), Yang Hai-Jing (杨海菁), Du Zhi-Jing (杜志静), Zhang Tian-Cai (张天才), Wang Jun-Min (王军民)   

  1. State Key Laboratory of Quantum Optics and Quantum Optics Devices,and Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
  • Received:2005-07-07 Revised:2005-09-30 Online:2006-01-20 Published:2006-01-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 60578018, 10434080 and 10374062),by the Key Scientific Program of Education Ministry of China (Grant No 204019), and by the Research Funds for Youth Academic Leaders of Shanxi Province, China.

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摘要： With a coupling laser locked to caesium 6S$_{1 / 2}$ $F_{\rm g}$=4--6P$_{3 / 2}$ $F_{\rm e}$=5 cycling transition and a co-propagating probe laser scanned across 6S$_{1 / 2}$ $F_{\rm g}$=4--6P$_{3 / 2}$ $F_{\rm e}$=3, 4 and 5 transitions, a novel scheme for sub-Doppler spectra in Doppler-broadened V-type three-level system is demonstrated by detecting the transmission of the coupling laser through a caesium vapour cell. The Autler--Townes doublet in the sub-Doppler spectra of the coupling laser is clearly observed. The effects of coupling laser intensity on the splitting and linewidth of the Autler--Townes doublet are experimentally investigated and the results agree well with theoretical predictions. Taking the multiple hyperfine levels of caesium atom into account, a brief analysis is presented.

Abstract: With a coupling laser locked to caesium 6S$_{1 / 2}$ $F_{\rm g}$=4--6P$_{3 / 2}$ $F_{\rm e}$=5 cycling transition and a co-propagating probe laser scanned across 6S$_{1 / 2}$ $F_{\rm g}$=4--6P$_{3 / 2}$ $F_{\rm e}$=3, 4 and 5 transitions, a novel scheme for sub-Doppler spectra in Doppler-broadened V-type three-level system is demonstrated by detecting the transmission of the coupling laser through a caesium vapour cell. The Autler--Townes doublet in the sub-Doppler spectra of the coupling laser is clearly observed. The effects of coupling laser intensity on the splitting and linewidth of the Autler--Townes doublet are experimentally investigated and the results agree well with theoretical predictions. Taking the multiple hyperfine levels of caesium atom into account, a brief analysis is presented.

Key words: sub-Doppler spectra, Autler--Townes doublet, caesium atoms

中图分类号:  (Quantum optics)

  • 42.50.-p
37.10.De (Atom cooling methods) 33.70.Jg (Line and band widths, shapes, and shifts)