Wavelength dependence four-wave mixing spectroscopy in a micrometric atomic vapour

doi:10.1088/1674-1056/19/9/090702

中国物理B ›› 2010, Vol. 19 ›› Issue (9): 90702-090702.doi: 10.1088/1674-1056/19/9/090702

Wavelength dependence four-wave mixing spectroscopy in a micrometric atomic vapour

李莉¹, 李院院², 张彦鹏³, 毕思文⁴

(1)Institute of Optics & Electronics, Department of Physics, Xi'an University of Arts and Science, Xi'an 710065, China; (2)Institute of Optics & Electronics, Department of Physics, Xi'an University of Arts and Science, Xi'an 710065, China; State Key Laboratory of Transient Optics and Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China; (3)Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China; (4)State Key Laboratory of Transient Optics and Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China

收稿日期:2010-01-28 修回日期:2010-03-09 出版日期:2010-09-15 发布日期:2010-09-15
基金资助:
Project supported from the Major Program of Science Foundation of Xi'an University of Arts and Science.

Wavelength dependence four-wave mixing spectroscopy in a micrometric atomic vapour

Li Yuan-Yuan(李院院)^a)b)†, Li Li(李莉)^a), Zhang Yan-Peng(张彦鹏)^c), and Bi Si-Wen(毕思文)^b)

^a Institute of Optics & Electronics, Department of Physics, Xi'an University of Arts and Science, Xi'an 710065, China; ^b State Key Laboratory of Transient Optics and Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China; ^c Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China

Received:2010-01-28 Revised:2010-03-09 Online:2010-09-15 Published:2010-09-15
Supported by:
Project supported from the Major Program of Science Foundation of Xi'an University of Arts and Science.

摘要/Abstract

摘要： This paper presents a theoretical study of wavelength dependence four-wave-mixing (FWM) spectroscopy in a micrometric thin atomic vapour. It compares three cases termed as mismatched case I, matched case and mismatched case II for the probe wavelength less, equal and greater than the pump wavelength respectively. It finds that Dicke-narrowing can overcome width broadening induced by Doppler effects and polarisation interference of thermal atoms, and high resolution FWM spectra can be achieved both in matched and mismatched wavelength for many cases. It also finds that the magnitude of the FWM signal can be dramatically modified to be suppressed or to be enhanced in comparison with that of matched wavelength in mismatched case I or II. The width narrowing and the magnitude suppression or enhancement can be demonstrated by considering enhanced contribution of slow atoms induced by atom-wall collision and transient effect of atom-light interaction in a micrometric thin vapour.

Abstract: This paper presents a theoretical study of wavelength dependence four-wave-mixing (FWM) spectroscopy in a micrometric thin atomic vapour. It compares three cases termed as mismatched case I, matched case and mismatched case II for the probe wavelength less, equal and greater than the pump wavelength respectively. It finds that Dicke-narrowing can overcome width broadening induced by Doppler effects and polarisation interference of thermal atoms, and high resolution FWM spectra can be achieved both in matched and mismatched wavelength for many cases. It also finds that the magnitude of the FWM signal can be dramatically modified to be suppressed or to be enhanced in comparison with that of matched wavelength in mismatched case I or II. The width narrowing and the magnitude suppression or enhancement can be demonstrated by considering enhanced contribution of slow atoms induced by atom-wall collision and transient effect of atom-light interaction in a micrometric thin vapour.

Key words: four-wave mixing, wavelength match, Dicke-narrowing, polarisation interference

中图分类号:

0765

李院院, 李莉, 张彦鹏, 毕思文. Wavelength dependence four-wave mixing spectroscopy in a micrometric atomic vapour[J]. 中国物理B, 2010, 19(9): 90702-090702.

Li Yuan-Yuan(李院院), Li Li(李莉), Zhang Yan-Peng(张彦鹏), and Bi Si-Wen(毕思文). Wavelength dependence four-wave mixing spectroscopy in a micrometric atomic vapour[J]. Chin. Phys. B, 2010, 19(9): 90702-090702.

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Wavelength dependence four-wave mixing spectroscopy in a micrometric atomic vapour

Wavelength dependence four-wave mixing spectroscopy in a micrometric atomic vapour

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