Abstract

We have grown high-quality $\mathrm{LuAG}:{\mathrm{Yb}}^{3+}$ crystals with 0.75, 3.8, 10, 12, 15, 20, and 50 at. % concentrations by the vertical Bridgman method. With low-temperature spectroscopy the Stark sublevel structure of the ${}^{2}F_{7∕2}$ ground state and the ${}^{2}F_{5∕2}$ excited state has been determined. With room-temperature spectroscopy, the emission cross section was found to be $3\times {10}^{-20}{\mathrm{cm}}^2$, being 1.5 times the $\mathrm{YAG}:{\mathrm{Yb}}^{3+}$ emission cross section. The luminescence quantum efficiency was measured in samples with different ${\mathrm{Yb}}^{3+}$ concentrations. Its value was found to be 90% for 3.8 and 10 at. %, 84% for 20 at. %, and 70% for 50 at. % ${\mathrm{Yb}}^{3+}$. The laser-emission tunability under diode pumping was found to extend from 1045 up to 1095 nm in a 12 at. % sample with 3.15 mm thickness.

© 2006 Optical Society of America

Characterization and comparison of Yb³⁺-doped YA1O₃ perovskite crystals (Yb:YAP) with Yb³⁺-doped Y₃Al₅O₁₂ garnet crystals (Yb:YAG) for laser application

G. Boulon, Y. Guyot, H. Canibano, S. Hraiech, and A. Yoshikawa
J. Opt. Soc. Am. B 25(5) 884-896 (2008)

Spectroscopic and laser characterization of Yb_0.15:(Lu_xY_1-x)₃Al₅O₁₂ ceramics with different Lu/Y balance

Angela Pirri, Guido Toci, Jiang Li, Tengfei Xie, Yubai Pan, Vladimir Babin, Alena Beitlerova, Martin Nikl, and Matteo Vannini
Opt. Express 24(16) 17832-17842 (2016)

Spectroscopic analysis and lasing of Er:Lu_1.5Y_1.5Al₅O₁₂ crystals

Dahua Zhou, Xiaodong Xu, Changtai Xia, Deyuan Shen, Shishu Cheng, Dongzhen Li, Juqing Di, Zhiwei Zhao, Feng Wu, and Jun Xu
J. Opt. Soc. Am. B 28(10) 2543-2548 (2011)

Structural, thermal, and luminescent properties of Yb-doped Y₃Al₅O₁₂ crystals

Xiaodong Xu, Zhiwei Zhao, Pingxin Song, Guoqing Zhou, Jun Xu, and Peizhen Deng
J. Opt. Soc. Am. B 21(3) 543-547 (2004)

Enhanced ~3 μm mid-infrared emissions of Ho³⁺ via Yb³⁺ sensitization and Pr³⁺ deactivation in Lu₃Al₅O₁₂ crystal

Yuhao Wang, Zhen Li, Hao Yin, Siqi Zhu, Peixiong Zhang, Yi Zheng, Jin Yu, and Zhenqiang Chen
Opt. Mater. Express 8(7) 1882-1889 (2018)