Analysis of experimental bandshapes of the nu(3) band of CH3F in helium: the role of interbranch and intrabranch line mixing

F Thibault, J Boissoles, IM Grigoriev, NN Filippov, MV Tonkov

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

Аннотация

We measured a series of absorption profiles of the nu(3) band of CH3F perturbed by helium. The measurements were performed at room temperature for helium pressures from 1 to 90 atm. We observe significant deviations of measured profiles with respect to those calculated as a sum of lines having Lorentzian shapes. To interpret the observed deviations, we consider various models of line mixing. The calculations performed in the ECS approximation provide the most reasonable agreement with the measured band shapes reproducing the existing data on line broadening coefficients within the limits of experimental uncertainty. Special attention is paid to the analysis of the differences of interbranch and intrabranch line mixing, that is to the structure of relaxation matrix.

Язык оригиналаАнглийский
Название основной публикации13TH SYMPOSIUM AND SCHOOL ON HIGH-RESOLUTION MOLECULAR SPECTROSCOPY
РедакторыLN Sinitsa
ИздательSPIE
Страницы239-243
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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