Photo-stimulate charge transfer and luminescence in rare earth gallium garnet crystals

The features of photoresponse spectra and luminescence in the ultraviolet range of A3B2Ga3O12A3B2Ga3O12 (A—RE ions, B—Ga or Sc) garnet crystals are considered. These crystals are characterized by the wide-band luminescence with nanosecond decay time. In the case of Gd-garnet the emission transition (near 380 nm band) H7/26→P7/26 of the Gd3+Gd3+-ions is proposed as possible one.