Diode-laser measurements of N2-broadening coefficients in the ν10 band of allene at low temperatures

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Abstract

Using a tunable diode-laser spectrometer, we have measured the N2-broadening coefficients of allene for 5 lines in the ν10 fundamental band near 11 μm at five low temperatures ranging from 167.7 K to 259.7 K. The collisional halfwidths have been obtained by fitting the spectral lineshapes with the Voigt and the Rautian profiles. For these lines, the n parameter of the temperature dependence has been determined giving respectively mean values of 0.651 (0.038) and 0.612 (0.027) for the Voigt and Rautian models.
Original languageEnglish
Pages (from-to)78-81
Number of pages4
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume127
DOIs
Publication statusPublished - 2013

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Keywords

  • Allene
  • N2-broadening
  • Diode-laser

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