Journal of Luminescence
Spectroscopy, excited-state absorption and stimulated emission in Pr3+-doped Gd2SiO5 and Y2SiO5 crystals
Н. В. Кулешов, Victor G. Shcherbitsky, A.A. Lagatsky, V. P. Mikhailov, B. I. Minkov, T. Danger, Thomas Sandrock, Günter Huber