Decay of Laser-Induced Excitations ofCenters
- 14 January 1966
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 141 (2), 692-695
- https://doi.org/10.1103/physrev.141.692
Abstract
A strong population of excited -center states is achieved in various alkali halides using a short intense pulse of a -switched ruby laser. During the presence of the excited centers the time dependence of their decay is measured with a fast-recording spectrometer. This is done by monitoring the absorption changes connected with the ground-state or excited-state populations. Using this method for crystals containing low -center concentrations, the lifetime of the excited state of centers in KI, RbI, CsI, RbBr, and CsF is measured from 7 to about 80°K by monitoring absorption changes in the region of the , the and the band, respectively. For KI samples containing high -center concentrations it is found that the decay curves are nonexponential.
Keywords
This publication has 13 references indexed in Scilit:
- Exciton Absorption in the Presence of ExcitedFCentersPhysical Review Letters, 1965
- New Data on the Relaxed Excited State of theCenterPhysical Review B, 1965
- Relaxation of the ExcitedCenterPhysical Review B, 1964
- Lifetime of the ExcitedCenterPhysical Review B, 1964
- On the lifetime of the excited FA centre in KCl(Li)Physics Letters, 1964
- Lifetime of the ExcitedCenterPhysical Review B, 1963
- On the Pekar and Perlin Calculation of F-Center LifetimesPhysica Status Solidi (b), 1963
- Relation between Absorption and Emission Probabilities in Luminescent Centers in Ionic SolidsPhysical Review B, 1962
- Lifetime of the ExcitedCenterPhysical Review Letters, 1962
- Experimentelle und theoretische Untersuchung des zwischenmolekularen Übergangs von ElektronenanregungsenergieZeitschrift für Naturforschung A, 1949