Author/Authors :
Wei، نويسنده , , Yanping and Tu، نويسنده , , Chaoyang and Jia، نويسنده , , Guohua and You، نويسنده , , Zhenyu and Wang، نويسنده , , Hongyan and Yang، نويسنده , , Fugui and Lu، نويسنده , , Xiuai and Li، نويسنده , , Jianfu and Zhu، نويسنده , , Zhaojie and Wang، نويسنده , , Yan، نويسنده ,
Abstract :
Tm 3 + : Ba 3 Gd 2 ( BO 3 ) 4 crystal with the size up to Φ 13 mm×44 mm was grown successfully by the Czochralski technique and its optical properties were presented. The absorption cross-section and emission cross-section were presented. Also, the potential laser gain near 1.9 μm was investigated. In the framework of the Judd–Ofelt (J–O) theory, the intensity parameters were calculated to be: Ω2=11.375×10−20 cm2, Ω4=5.077×10−20 cm2 and Ω6=6.524×10−20 cm2. The spectroscopic parameters of this crystal such as the oscillator strengths, radiative transition probabilities, radiative lifetime as well as the branching ratios were calculated, too. This crystal is promising as a tunable infrared laser crystal.
Keywords :
B. Crystal growth , A. Tm 3 + : Ba 3 Gd 2 ( BO 3 ) 4 crystal , E. Light absorption , D. Optical properties
