|
This article is cited in 3 scientific papers (total in 3 papers)
Laser applications and other topics in quantum electronics
CARS spectroscopy of carbon dioxide in the critical point vicinity
V. G. Arakcheeva, V. N. Bagratashvilib, A. A. Valeeva, V. M. Gordienkoa, V. V. Kireeva, V. B. Morozova, A. N. Olenina, V. K. Popovb, V. G. Tunkina, D. V. Yakovleva a Lomonosov Moscow State University, Faculty of Physics
b Department of Advanced Laser Technologies ILIT, Troitsk, Moscow Region
Abstract:
The transformation of the Q-band of the low-frequency 1285-cm-1 component of the 2v2/v1 Fermi doublet of a CO2 molecule is studied in the critical point vicinity (Tc = 31.03 °C, Pc = 72.8 atm) by the CARS method. CARS spectra were recorded by changing pressure isothermically from 48 to 120 atm at several temperatures in the range between 25 and 36°C. At the temperature above 29°C, the pressure dependences of the Q-band width pass through the maximum, which exceeds by 40% –50% the typical Q-band width in the liquid phase. The position of the maximum shifts to higher pressures with increasing temperature. The inhomogeneous broadening of the Q-band is interpreted based on the cluster microstructure of a supercritical fluid.
Received: 06.05.2003
Citation:
V. G. Arakcheev, V. N. Bagratashvili, A. A. Valeev, V. M. Gordienko, V. V. Kireev, V. B. Morozov, A. N. Olenin, V. K. Popov, V. G. Tunkin, D. V. Yakovlev, “CARS spectroscopy of carbon dioxide in the critical point vicinity”, Kvantovaya Elektronika, 34:1 (2004), 86–90 [Quantum Electron., 34:1 (2004), 86–90]
Linking options:
https://www.mathnet.ru/eng/qe2587 https://www.mathnet.ru/eng/qe/v34/i1/p86
|
Statistics & downloads: |
Abstract page: | 191 | Full-text PDF : | 107 | First page: | 1 |
|