THE OPTICAL PROPERTIES OF Pr3+ EMBEDDED IN THE RARE EARTH BOROGERMANATE MATRICES: REBGeO5

Abstract

The luminescent properties of the trivalent praseodymium ion in the trigonal borogermanate matrice PrBGeO₅ have been analysed. The energy level schemes are deduced from the absorption and emission spectra and reproduced with 14 crystal field parameters (cfps) according to the local point symmetry occupied by the rare earth element in the matrix.