Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Line broadening and line mixing effect in nu(3) band of CH4 perturbed by He gas. / Grigoriev, IM; Filippov, NN; Tonkov, MV; Gabard, T; Le Doucen, R.
13TH SYMPOSIUM AND SCHOOL ON HIGH-RESOLUTION MOLECULAR SPECTROSCOPY. ed. / LN Sinitsa. SPIE, 2000. p. 212-216 (PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE); Vol. 4063).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Line broadening and line mixing effect in nu(3) band of CH4 perturbed by He gas
AU - Grigoriev, IM
AU - Filippov, NN
AU - Tonkov, MV
AU - Gabard, T
AU - Le Doucen, R
PY - 2000
Y1 - 2000
N2 - The spectra of CH4-He mixtures were measured in the P- and R-region of nu(3) vibration-rotation band at lower pressures of 0.2-1.0 bar and for the whole band at higher pressures up to 90 bar. The broadening line coefficients were found from lower pressure data for the lines of P branch. These coefficients were calculated in the frame of the semi-classical approach. They agree with the experimental values, but a small J-dependent deviation was observed. The line mixing effect was observed. At higher pressure it was interpreted in the terms of the adjusted branch-coupling model. At lower pressure the line mixing effect was found to be especially pronounced in the region of relatively weak lines forming the clusters R(16)-R(19).
AB - The spectra of CH4-He mixtures were measured in the P- and R-region of nu(3) vibration-rotation band at lower pressures of 0.2-1.0 bar and for the whole band at higher pressures up to 90 bar. The broadening line coefficients were found from lower pressure data for the lines of P branch. These coefficients were calculated in the frame of the semi-classical approach. They agree with the experimental values, but a small J-dependent deviation was observed. The line mixing effect was observed. At higher pressure it was interpreted in the terms of the adjusted branch-coupling model. At lower pressure the line mixing effect was found to be especially pronounced in the region of relatively weak lines forming the clusters R(16)-R(19).
KW - Q-BRANCH
U2 - 10.1117/12.375383
DO - 10.1117/12.375383
M3 - статья в сборнике материалов конференции
SN - 0-8194-3697-6
T3 - PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)
SP - 212
EP - 216
BT - 13TH SYMPOSIUM AND SCHOOL ON HIGH-RESOLUTION MOLECULAR SPECTROSCOPY
A2 - Sinitsa, LN
PB - SPIE
Y2 - 4 July 1999 through 6 July 1999
ER -
ID: 41409971