Excited-state spectroscopy and picosecond relaxation at F centers
Akhmanov S. A., Gadonas R., Danelyus R., Kamalov V. F., Koroteev N. I., Piskarskas A. S., Svirko Yu. P.
A picosecond absorption spectrometer using tunable parametric light sources has been used for direct measurements of the relaxation times in excited states of F centers in a KBr crystal. An absorption band, which corresponds to transitions beginning from the bottom of the relaxed excited state, has been observed. The kinetics of the binding of a free electron at an F center is studied.