Identification of structures in absorption spectrum of Kr-Xe gas mixtures close to the Xe resonance line at 146.96 nm
Uppsala University, Department of Physics, Box 530, 75121 Uppsala, Sweden
2 Vavilov state Optical Institute, Birzhevaja Line 12, St. Petersburg, 199034, Russia
Revised: 20 February 2000
Published online: 15 September 2000
The origins of spectral structures that appear close to the Xe resonance line at 146.96 nm in absorption spectra of Kr gas with an admixture of Xe are discussed in this paper. It is shown that these structures can result from bound-bound and bound-free transitions in the Xe-Kr molecule between the ground state and the 1(3P1) excited state, which both are weakly-bound. The depth of the excited state is estimated. An introduction of a hump on the 1(3P1) state internuclear potential is suggested.
PACS: 33.20.Ni – Vacuum ultraviolet spectra / 33.20.Tp – Vibrational analysis
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000