The determination of acceptor distribution from the donor decay time response in co-doped crystals Academic Article uri icon


  • Recently, new materials for solid-state lasers have been developed which are co-doped with two ions: donors, which effectively absorb the pump energy, and acceptors, which lase at the desired wavelength. Two of the most famous of these lasers are the Nd, Cr: GSGG laser (Gd3Sc1. 8Ga3. 2012)[1, 2] and the Cr, Tm, Ho: YAG laser (Y3A150L2)[3]. There are two methods by which energy can flow from donors to acceptors, the multipole mechanism and exchange interaction. For the former, Fiirster and Dexter [41 developed expressions for the donor decay time assuming a random distribution of acceptors; the latter interaction is analyzed under the same conditions by Inokuti and Hirayama [5 1. We have recently expanded these models to include the possibility of a nonrandom distribution of acceptors in the crystal, when the presence of a neighboring donor can affect the probability of an …

publication date

  • January 1, 1993