Abstract
The temperature dependence of crossluminescence of barium fluoride and cesium chloride single crystals has been studied in the wide temperature range from 5 to 750 K using the technique of time-resolved VUV spectroscopy under synchrotron radiation excitation. It was shown that the temperature behaviour of the bandwidths in crossluminescence spectra of both crystals can be well described in the whole temperature range in the framework of the model of the local optical centre in the vibrating lattice environment. A multi-dimensional configuration co-ordinate scheme and a coupling with different modes of lattice vibration for different crossluminescence transitions were proposed as the explanation of different temperature broadening effects for different bands in the spectra of crossluminescence.
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