Optical properties of Tm3+ in the gehlenite matrix and sensitization of Ho3+ luminescence in potential Tm/Ho lasers N. BRITOS, B. VIANA, A. M. LEJUS et D. VIVIENJ. Phys. IV France, 04 C4 (1994) C4-513-C4-516DOI: https://doi.org/10.1051/jp4:19944123
