Abstract

Air-broadened halfwidths and pressure-induced line shifts in the ν₄ fundamental of ¹³CH₄ were determined from spectra recorded at room temperature and at 0.01-cm⁻¹ resolution using a Fourier transform spectrometer. Halfwidths and pressure shifts were determined for over 180 transitions belonging to J″ values of ⩽16. Comparisons of air-broadened halfwidths and pressure-induced line shifts made for identical transitions in the ν₄ bands of ¹²CH₄ and ¹³CH₄ have shown that ¹³CH₄ air-broadened halfwidths are ~5% smaller than the corresponding ¹²CH₄ halfwidths, and the pressure shifts for ¹³CH₄ lines are ~5–15% larger than those for ¹²CH₄.

© 1988 Optical Society of America

Measurements of air-, N₂-, and O₂-broadened halfwidths and pressure-induced line shifts in the ν₃ band of ¹³CH₄

V. Malathy Devi, D. Chris Benner, Mary Ann H. Smith, and Curtis P. Rinsland
Appl. Opt. 30(3) 287-304 (1991)

Measurements of air-broadened and nitrogen-broadened Lorentz width coefficients and pressure shift coefficients in the ν₄ and ν₂ bands of 12CH₄

Curtis P. Rinsland, V. Malathy Devi, Mary Ann H. Smith, and D. Chris Benner
Appl. Opt. 27(3) 631-651 (1988)

Measurements of argon broadened Lorentz width and pressure-induced line shift coefficients in the ν₄ band of ¹²CH₄

Curtis P. Rinsland, V. Malathy Devi, Mary Ann H. Smith, and D. Chris Benner
Appl. Opt. 28(11) 2111-2118 (1989)

Absolute intensities and self-, N₂-, and air-broadened Lorentz halfwidths for selected lines in the ν₃ band of ¹²CH₃D from measurements with a tunable diode laser spectrometer

V. Malathy Devi, Curtis P. Rinsland, D. Chris Benner, Mary Ann H. Smith, and K. B. Thakur
Appl. Opt. 25(11) 1848-1853 (1986)

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
Appl. Opt. 24(17) 2788-2791 (1985)