|
|||||
|
|
Spectra and intensity parameters of Tm ion in YAlO3 crystal |
|
| Authors: | Yanling Lu Jun Wang Anping Dong Baode Sun |
| Affiliation: | a State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200030, PR China b Department of Physics, Shanghai Jiao Tong University, Shanghai 200030, PR China |
| Abstract: | High quality Tm-doped YAlO3 (Tm:YAlO3) single crystals were obtained along crystallographic b-axis by the Czochralski technique. Optical absorption and fluorescence spectra for Tm3+ in YAlO3 crystals were investigated at room temperature. Based on Judd-Ofelt approach, the intensity parameters Ωt (t = 2, 4, 6) of Tm:YAlO3 were calculated to be Ω2 = 0.93 × 10−20 cm2, Ω4 = 2.23 × 10−20 cm2, and Ω6 = 1.12 × 10−20 cm2. The spectral parameters such as experimental and theoretical oscillator strengths, radiative transition probabilities, radiative lifetime and the fluorescence branching ratio were also obtained. All results indicate that Tm:YAlO3 is a potential candidate for compact, efficient mid-infrared lasers with laser diode pumping. |
| Keywords: | Tm:YAlO3 crystal Spectral properties Judd-Ofelt approach |
| 本文献已被 ScienceDirect 等数据库收录！ | |