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- Title
Experimental analysis of overall thermal properties of Nd:La<sub>2</sub>CaB<sub>10</sub>O<sub>19</sub> crystals.
- Authors
Zhang, Jianxiu; Wu, Yang; Zhang, Guochun; Li, Yin; Wu, Yicheng
- Abstract
Pure or rare-earth-ion-doped La2CaB10O19 (LCB) is a promising optical material for nonlinear frequency conversion, laser and self-frequency doubling applications. In this paper, the thermophysical properties of Nd3+-doped LCB (Nd:LCB) crystals were measured and compared with those of pure and of Yb3+- and Er3+-doped LCB, as well as other borate nonlinear optical crystals. The melting points of rare-earth-doped LCB crystals are lower than that of pure LCB. Thermal expansion coefficients along the a, b, c, c*, a*, 〈110〉 and 〈110〉* directions have been measured, and the principal expansion coefficients were calculated to be 1.85 × 10−6, 4.13 × 10−6 and 8.79 × 10−6 K−1. The measured specific heat of Nd:LCB is lower than that of pure LCB, resulting in a larger internal temperature gradient under irradiation by a pulsed laser beam. The measured thermal expansion anisotropy of Nd:LCB is stronger than that of pure LCB. The thermal conductivities of Nd:LCB along the c and c* directions are smaller than those along other crystallographic directions.
- Subjects
RARE earth metals; THERMOPHYSICAL properties; NONLINEAR optical materials crystallography; NONLINEAR optics; CRYSTAL optics; THERMAL expansion; THERMAL properties of metals
- Publication
Journal of Applied Crystallography, 2012, Vol 45, Issue 6, p1182
- ISSN
0021-8898
- Publication type
Article
- DOI
10.1107/S002188981203974X