In this study we report the first measurements of the pressure-induced lineshift coefficients due to Ar, He, O 2 , and N 2 for 22 rovibrational lines from P(53) to R( ), belonging to the 2 3 band of 16 O 12 C 32 S at 4100 cm Ϫ1 . The lineshift results were obtained from the simultaneous record of th
The Water-Vapor ν2 Band Lineshift Coefficients Induced by Nitrogen Pressure
✍ Scribed by A. Valentin; Ch. Claveau; A.D. Bykov; N.N. Lavrentieva; V.N. Saveliev; L.N. Sinitsa
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 203 KB
- Volume
- 198
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
The water-vapor lineshift coefficients in the nu(2) band induced by nitrogen pressure were measured with a FT spectrometer of Paris University at the spectral resolution of 0.005 cm(-1) for the line with angular moment of upper states up to 16. Calculations were made using Anderson formulation of semiclassical impact theory. The calculated lineshifts agree satisfactorily with measured values, but for some lines, deviations were found. The analysis revealed the systematic J trend in subbranches, which consists of transitions with the same values of quantum number K(a) and equally changing K(a) and K(c). Copyright 1999 Academic Press.
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To complete our study concerning lineshift in the rovibrational spectrum of (14)N(16)O(2), a pulse-driven three-channel lead salt diode laser spectrometer was applied to record high-resolution spectra at room temperature in the 6.2-µm region corresponding to the nu(3) band at low NO(2) concentration
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