Line broadening and line mixing effect in nu(3) band of CH4 perturbed by He gas

IM Grigoriev, NN Filippov, MV Tonkov, T Gabard, R Le Doucen

Результат исследований: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

Аннотация

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).

Язык оригиналаАнглийский
Название основной публикации13TH SYMPOSIUM AND SCHOOL ON HIGH-RESOLUTION MOLECULAR SPECTROSCOPY
РедакторыLN Sinitsa
ИздательSPIE
Страницы212-216
Число страниц5
ISBN (печатное издание)0-8194-3697-6
DOI
СостояниеОпубликовано - 2000
Событие13th Symposium and School on High-Resolution Molecular Spectroscopy - Tomsk, Russia
Продолжительность: 4 июл 19996 июл 1999

Серия публикаций

НазваниеPROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)
ИздательSPIE-INT SOC OPTICAL ENGINEERING
Том4063
ISSN (печатное издание)0277-786X

конференция

конференция13th Symposium and School on High-Resolution Molecular Spectroscopy
ГородTomsk, Russia
Период4/07/996/07/99

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