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Chin. Opt. Lett.
 Home  List of Issues    Issue 06 , Vol. 03 , 2005    Measurements of pressure induced self-broadening and frequency shift coefficients of methane R9 manifold of 2ν3 band


Measurements of pressure induced self-broadening and frequency shift coefficients of methane R9 manifold of 2ν3 band
Weiguang Ma, Lei Dong, Wangbao Yin, Linfeng Li, Lei Zhang, Suotang Jia
State key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006

Chin. Opt. Lett., 2005, 03(06): pp.367-367-

DOI:
Topic:Spectroscopy
Keywords(OCIS Code): 300.1030  170.4090  

Abstract
An external-cavity diode laser (ECDL) has been used to investigate pressure-induced self-broadening as well as frequency shift of 2ν3 band R9 manifold of methane. A phase sensitivity detection technology has been employed to determine the pressure induced frequency shift coefficient, however, which is obtained by line shape analyses of the recorded absorption spectrum. F1 and F2 unresolved double lines near 6105.626 cm^(-1) were measured as an object because they are often used to the high sensitivity detection of trace methane. The results show that the self-broadening and pressure induced frequency shift coefficients are 0.0232(+-)0.003 and 0.0055(+-)0.0007 MHz/Pa, respectively.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2004/12/24
Accepted:
Posted online:

Get Citation: Weiguang Ma, Lei Dong, Wangbao Yin, Linfeng Li, Lei Zhang, Suotang Jia, "Measurements of pressure induced self-broadening and frequency shift coefficients of methane R9 manifold of 2ν3 band," Chin. Opt. Lett. 03(06), 367-367-(2005)

Note: This work was partially supported by Excellent Experts Funds of Development-Plan Council of Shanxi Province and the Natural Science Funds of Shanxi Province (No. 20041037). W. Ma's e-mail address is mwg@sxu.edu.cn.



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