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Line parameters of 12CH4 around 2.008 μm studied by tunable diode laser spectroscopy with a long-path White cell

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Abstract

The absorption spectrum of CH412 at 2.008 μm has been recorded at 296 K, using a high-resolution tunable diode laser absorption spectrometer combined with a long-path, multi-pass White cell. The line positions, intensities, and self-broadening coefficients for 32 transitions of the lower part of the Tetradecad in the 49754985cm1 spectral range of CH412 have been measured. To our knowledge, no experimental information has been obtained for the self-broadening coefficients of these lines before. Comparisons of the line parameters determined in the present work with those from HITRAN2016 line lists are provided.

© 2018 Optical Society of America

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