The collisional widths of ~160 transitions belonging mainly to the 2ν2–ν2, 3ν2–2ν2, and 4ν2–3ν2 hot bands of the H216O molecule have been measured on Fourier-transform air–methane flame spectra at 2000 K and analyzed, showing a strong decrease in the collisional widths when the rotational quantum number J increases, as well as a nonnegligible decrease of the collisional widths when the υ2 vibrational quantum number increases.
© 1992 Optical Society of America
Original Manuscript: March 7, 1991
Published: March 20, 1992
Victor Dana, Jean-Yves Mandin, Claude Camy-Peyret, Jean-Marie Flaud, and Laurence S. Rothman, "Rotational and vibrational dependences of collisional linewidths in the nν2–(n − 1)ν2 hot bands of H2O from Fourier-transform flame spectra," Appl. Opt. 31, 1179-1184 (1992)