Experimental investigation and computer simulation of high-resolution spectra of vibrationally excited SF 6 molecules

Autor: Boris G. Sartakov, A. E. Varfolomeev, Sergey Sergeivich Alimpiev, Ivan I. Zasavitskii, A. P. Shotov, D. K. Bronnikov, G S Baronov, S M Nikiforov
Rok vydání: 1992
Předmět:
Zdroj: SPIE Proceedings.
ISSN: 0277-786X
DOI: 10.1117/12.140322
Popis: The high resolution spectra of the 1 - 2 and 2 - 3 transitions between excited vibrational levels of SF 6 molecules cooled to T equals 30 K in supersonic jets have been experimentally investigated by the double resonance method. A tunable high pressure CO 2 laser was used to excite molecules and the excited transitions were probed with a tunable diode laser. A computer simulation of the experimental spectra has been made. The agreement of the experimental and calculated spectra was attained with an accuracy of 10 -3 cm -1 , while the values of anharmonicity constants for the (nu) 3 mode of the SF 6 molecule were refined. The matrix elements of the dipole moment of the excited transitions and the wide range spectra of 1 - 2, 2 - 3, 3 - 4 transitions in SF 6 were also calculated.
Databáze: OpenAIRE