Electronic energy transfer in a dense level system
Authors: Gabbanini C., Biagini M., Gozzini S., Lucchesini A., Kopystynska A., Moi L.
Autors Affiliation: IFAM – CNR – Pisa – Italy; Institute of Experimental Physics, Warsaw University, Warsaw, Poland; Dipartimento di Fisica, Università di Siena, Siena, Italy
Abstract: The fluorescence spectra induced by resonant laser excitation of a vapor mixture containing four alkali atoms have been detected and analyzed. These spectra show a large number of atomic lines due to collisional energy-transfer processes between laser-excited atoms. The ratio of the directly-excited lines to the collisionally-populated lines increases by orders of magnitude when the number of atomic species in the mixture is increased. A model is proposed which gives the right order of magnitude for the observed line populations and permits a detailed analysis of rather complex conditions. The model shows that for a fixed total laser-power density, the internal energy of the vapor mixture may be increased by exciting all of the atomic species and that it is possible to store in the vapor mixture a high fraction of the laser energy.
Journal/Review: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Volume: 47 Pages from: 103 to: 112
More Information: doi: 10.1016/0022-4073(92)90068-F
I.F.: 0.775KeyWords: collisional energy transfer; sodium; potassium; rubidium; caesiumDOI: 10.1016/0022-4073(92)90068-FCitations: 5data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-12-05References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here