Abstract
Temperature dependent thermal and spectroscopic properties of Yb:YAlO3 (Yb:YAP) perovskite crystal at temperatures ranging from 77 to 298 K are presented. Thermal properties including specific heat, thermal expansion coefficient and thermal conductivity were investigated. Thermal shock resistance parameters were evaluated and the thermal shock resistance parameters were significantly increased from 0.68 × 106 W m-1 to 12.32 × 106 W m-1 in Yb:YAP as temperature varies from 298 to 77 K. The spectroscopic parameters, such as absorption, fluorescence, lifetime were also studied. The results of our study indicate that Yb:YAP crystal is a promising laser medium for high-power solid-state laser. The calculated cross-sections together with relevant thermal properties provide important information for the design in a new generation of cryogenically cooled near infrared laser.
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