Intersystem Crossing, Polarization, and Defect Formation Induced by Optical Excitation of Self-Trapped Excitons in Alkali Halides
- 8 March 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 36 (10), 529-532
- https://doi.org/10.1103/physrevlett.36.529
Abstract
Metastable relaxed excitons created by pulsed electron irradiation in alkali-halide crystals are excited to higher states by a laser pulse. Consequent changes in excitonic absorption and emission yield data on triplet-singlet conversion and on polarization of the optical transitions. It is found that centers are formed upon promotion of self-trapped excitons from the lowest metastable level to the second excited level in KCl.
Keywords
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