APPLICATION OF A MODIFIED JUDD-OFELT THEORY TO PRASEODYMIUM-DOPED FLUORIDE GLASSES

Using the original Judd-Ofelt theory and a more recent modified Judd-O felt theory, the radiative properties of praseodymium in a series of h alide glasses are predicted. Experimental and measured oscillator stre ngths are presented and Judd-Ofelt parameters are determined by both m ethods for all glasses. The calculated radiative lifetimes are compare d with the experimentally measured values for the D-1(2) energy level and the suitability of the two models are compared. Results show that the modified theory provides better agreement with the experimentally measured lifetimes for the D-1(2) transition.