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Applied Optics

Applied Optics


  • Vol. 24, Iss. 17 — Sep. 1, 1985
  • pp: 2788–2791

Measurements of 12CH4ν4 band halfwidths using a tunable diode laser system and a Fourier transform spectrometer

V. Malathy Devi, Curtis P. Rinsland, Mary Ann H. Smith, and D. Chris Benner  »View Author Affiliations

Applied Optics, Vol. 24, Issue 17, pp. 2788-2791 (1985)

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Air-broadened and N2-broadened halfwidths at room temperature for twenty-five transitions in the ν4 fundamental band of 12CH4 have been determined from IR absorption spectra recorded with a tunable diode laser spectrometer. Two tunable diode lasers operating in the 1250–1380-cm−1 region were used to obtain these data. Air-broadened halfwidths for twenty of these lines were also determined from additional spectra recorded at 0.01-cm−1 resolution with the Fourier transform spectrometer in the McMath solar telescope complex on Kitt Peak. The air-broadened halfwidths obtained from these two techniques are very consistent with agreement better than 3% in most cases.

© 1985 Optical Society of America

Original Manuscript: May 9, 1985
Published: September 1, 1985

V. Malathy Devi, Curtis P. Rinsland, Mary Ann H. Smith, and D. Chris Benner, "Measurements of 12CH4ν4 band halfwidths using a tunable diode laser system and a Fourier transform spectrometer," Appl. Opt. 24, 2788-2791 (1985)

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  1. D. E. Jennings, A. G. Robiette, “Determination of the ν4 Band Strength of 12CH4 from Diode Laser Line Strength Measurements,” J. Mol. Spectrosc. 94, 369 (1982). [CrossRef]
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