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Absolute line intensities determination in the nu7 band of C2H4
Jacques Walrand1, Marc Lengelé, Ghislain Blanquet
1Laboratoire de Spectroscopie Moléculaire, Facultés Universitaires Notre-Dame de la Paix, 61 Rue de Bruxelles, B-5000, Namur, Belgium.
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
|January 14, 2003
Abstract:
Absolute intensities have been measured for 26 lines of C2H4 in the nu7 fundamental transition, using a tunable diode-laser spectrometer. These lines with 3< or = J"< or = 21, 2< or = Ka< or = 4, 2< or = Kc< or = 20 are located in the spectral range 920-980 cm(-1). The intensities have been measured by using two methods: the equivalent width method (EWM) and the line profile fit method (FPM). For the last one, three models have been tested: Voigt, Rautian and Galatry profiles.