The effect of Cr concentration on emission cross-section and fluorescence lifetime in Cr,Yb : YAG crystal
Abbreviated Journal Title
Cr, Yb : YAG crystal; self-Q-switched; energy transfer; emission; cross-section; YB-YAG LASER; SATURABLE ABSORBER; ND-YAG; PERFORMANCE; Optics
The emission cross-section, and fluorescence lifetime of Cr,Yb:YAG with different concentration of Cr4+ and Yb:YAG were measured. With the increase of Cr concentration in Cr,Yb:YAG, the emission cross-section keeps constant and fluorescence lifetime decreases. The quantum efficiency decreases and the energy transfer efficiency from Yb3+ to Cr4+ increase as the Cr concentration increases in Cr-Yb-co-doped Cr,Yb:YAG system. The nonradiative Yb3+ --> Cr4+ energy transfer-is consistent with an electric dipole-dipole interaction mechanism. The optimum Cr concentration for Cr,Yb:YAG was estimated. Also the potential of Cr,Yb:YAG as a self-Q-switched laser crystal was discussed. (C) 2003 Elsevier Science B.V. All rights reserved.
Journal of Luminescence
"The effect of Cr concentration on emission cross-section and fluorescence lifetime in Cr,Yb : YAG crystal" (2003). Faculty Bibliography 2000s. 3712.