Molecular ion centers (XeAr)+in solid Ne were produced by deposition of an ion-containing gas on a cooled substrate. Laser-induced fluorescence (LIF) and excitation yield were studied in the range of transitions between the ground state of the ionic centers and the lower excited states related to the2P1/2,2P3/2limits of Xe+. The fluorescence of (XeAr)+exhibits a vibrational structure with a spacing between the peaks of the fluorescence progression of about ω-e$/ = 11.1 meV.
Savchenko, E. V., Ogurtsov, A. N., Grigorashchenko, O. N., Beyer, M., Lorenz, M., Lammers, A., & Bondybey, V. E. (2000). Radiation-induced formation of stable charge centers in rare-gas solids. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 166, 47–50. https://doi.org/10.1016/S0168-583X(99)00642-4