1. Investigation on the mechanical, thermal properties, and refractive index of Er,Pr:GYSGG laser crystal.
- Author
-
Han, Zhiyuan, Sun, Dunlu, Zhang, Huili, Luo, Jianqiao, Quan, Cong, Hu, Lunzhen, Dong, Kunpeng, Chen, Yuwei, Qiao, Yang, and Cheng, Maojie
- Subjects
SOLID-state lasers ,THERMAL properties ,THERMAL conductivity ,THERMAL expansion - Abstract
We investigate the mechanical, thermal properties, and refractive index of (Er
0.66 Gd1.17 )(Pr0.003 Y1.167 )Sc2 Ga3 O12 (Er,Pr:GYSGG) crystal with excellent radiation-resistant ability grown by the Czochralski method. The X-ray rocking curve and the optical homogeneity reveal that the Er,Pr:GYSGG crystal possesses high crystalline and optical quality. The crystal density is measured to be 6.03 g cm−3 by the Archimedes method. The Mohr's hardness is obtained to be 6.42, indicating that the Er,Pr:GYSGG crystal is more conducive to being processed compared with Er:YSGG crystal. The thermal specific, thermal conductivity, and thermal expansion coefficient are determined to be 0.52 J g−1 K−1 , 5.35 W m−1 K−1 , and 8.50 × 10–6 K−1 , respectively. The refractive indices corresponding to a few distinct wavelengths are determined by the minimum deviation angle method, which is used to fit the refractive index curve in the range of 320–3000 nm through the Sellmeier dispersion equation. All these results are of great significance for the further research and laser application of the Er,Pr:GYSGG crystal. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF