Cs*Hen exciplexes in solid ⁴He

Moroshkin, Peter; Hofer, Adrian; Nettels, Daniel; Ulzega, Simone; Weis, Antoine

doi:10.1063/1.2141952

Back

Journal article

Cs^*He_n exciplexes in solid ⁴He

Moroshkin, Peter Physics Department, University of Fribourg, Switzerland
Hofer, Adrian Physics Department, University of Fribourg, Switzerland
Nettels, Daniel Physics Department, University of Fribourg, Switzerland
Ulzega, Simone Physics Department, University of Fribourg, Switzerland
Weis, Antoine Physics Department, University of Fribourg, Switzerland

2006

Published in:

Journal of Chemical Physics. - 2006, vol. 124, p. 024511

English We present a theoretical and experimental study of the laser-induced formation process and of the emission spectra of Cs^*He_n exciplexes in the hcp and bcc phases of solid helium. Two different exciplex molecules are detected: a linear triatomic Cs^*He₂, which can exist in two electronic states: Aπ_1/2 and Bπ_3/2, and a larger complex, where six or seven He atoms form a ring around a single cesium atom in the 6P_1/2 state. A theoretical model is presented, which allows the interpretation of the experimentally observed spectra.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

Language