TY - JOUR
T1 - Diode-laser spectroscopy
T2 - Line profiles of H2O in the region of 1.39 μm
AU - Lepère, M.
AU - Henry, A.
AU - Valentin, A.
AU - Camy-Peyret, C.
N1 - Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2001/1/1
Y1 - 2001/1/1
N2 - Using a stabilized diode-laser spectrometer, we have studied the line profiles of water vapor near 7185.59 cm. With low pressures of pure gas (≤1 Torr) in a White-type cell, we have deduced the line intensities using the Voigt profile. This study shows clear differences between experimental and calculated lines described by a Voigt profile when the pressure increases. For water vapor in mixtures with N, O, Ar, or He, we have determined the collisional broadening coefficients, taking into account the collisional narrowing (Dicke effect). The narrowing parameters have been determined using soft (Galatry) or hard (Rautian and Sobel'man) collision models and compared to the dynamic friction coefficient.
AB - Using a stabilized diode-laser spectrometer, we have studied the line profiles of water vapor near 7185.59 cm. With low pressures of pure gas (≤1 Torr) in a White-type cell, we have deduced the line intensities using the Voigt profile. This study shows clear differences between experimental and calculated lines described by a Voigt profile when the pressure increases. For water vapor in mixtures with N, O, Ar, or He, we have determined the collisional broadening coefficients, taking into account the collisional narrowing (Dicke effect). The narrowing parameters have been determined using soft (Galatry) or hard (Rautian and Sobel'man) collision models and compared to the dynamic friction coefficient.
UR - http://www.scopus.com/inward/record.url?scp=0035527032&partnerID=8YFLogxK
U2 - 10.1006/jmsp.2001.8372
DO - 10.1006/jmsp.2001.8372
M3 - Article
AN - SCOPUS:0035527032
SN - 0022-2852
VL - 208
SP - 25
EP - 31
JO - Journal of molecular spectroscopy
JF - Journal of molecular spectroscopy
IS - 1
ER -