Abstract
Lineshapes of the optical absorption and magnetic circular dichroism spectra of KBr:In + in the B-band region have been calculated using the semiclassical approximation. Integration over the interaction mode coordinates was carried out by the method of gaussian quadrature. The calculated absorption lineshape is in good agreement with that obtained from the observed spectrum. The very weak absorption peak on the high energy side of the B-band, which was earlier attributed to a dimer center, is now seen to be a part of the B-band itself. The calculated MCD lineshape reveals only two prominent peaks — one negative and the other positive — in contrast to the experimental spectrum which comprises three peaks. Possible reasons for this discrepancy are discussed.
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