Collisional self-broadening coefficients and probabilities of spontaneous emission of the CO2 1000–0001 transition lines
- Autores: Arshinov K.I.1, Krapivnaya O.N.1, Nevdakh V.V.2
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Afiliações:
- Institute of Technical Acoustics
- Belarusian National Technical University
- Edição: Volume 30, Nº 4 (2017)
- Páginas: 311-315
- Seção: Spectroscopy of Ambient Medium
- URL: https://journals.rcsi.science/1024-8560/article/view/188097
- DOI: https://doi.org/10.1134/S1024856017040030
- ID: 188097
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Resumo
Using a tunable frequency-stabilized CO2 laser, the pressure dependences of unsaturated absorption coefficients (AC) are measured in pure carbon dioxide in the pressure range from 5 to 30 Torr, where the spectral line shape is described by the Voigt profile. The absorption coefficients are measured in the centers of R(8), R(22), R(34), P(22), and P(36) spectral lines of the 1000–0001 transition in the temperature range 300–700 K. By means of the least-squares method, the inverse problem is solved for the system of equations for AC at different pressures in the temperature range under study. The self-broadening coefficients \({\gamma _{C{O_2} - C{O_2}}}\) and the probabilities of spontaneous emission Aik are derived. A new formula is proposed for \({\gamma _{C{O_2} - C{O_2}}}\) (T) dependence.
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Sobre autores
K. Arshinov
Institute of Technical Acoustics
Autor responsável pela correspondência
Email: itaaki@yandex.ru
Belarus, Vitebsk, 210023
O. Krapivnaya
Institute of Technical Acoustics
Email: itaaki@yandex.ru
Belarus, Vitebsk, 210023
V. Nevdakh
Belarusian National Technical University
Email: itaaki@yandex.ru
Belarus, Minsk, 220013
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