Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1793051 | Journal of Crystal Growth | 2011 | 5 Pages |
Abstract
An Nd3+:Ca9Gd(VO4)7 crystal with dimensions of ∅25×30 mm3 was grown by the Czochralski method. The hardness, thermal expansion coefficient and thermal conductivity coefficient of the crystal were measured. The spectroscopic characteristics of Nd3+:Ca9Gd(VO4)7 crystals were investigated. The absorption band at 810 nm has an FWHM of 10 nm, and absorption cross-sections are 5.81×10−20 cm2 for π-polarization and 7.47×10−20 cm2 for σ-polarization at 810 nm. The emission cross-sections at 1067 nm are 4.2×10−20 and 6.5×10−20 cm2 for π- and σ-polarizations, respectively. The quantum efficiency ηc is equal to 94.3%. To sum up the above results, Nd3+:Ca9Gd(VO4)7 crystal can be regarded as a highly efficient solid state laser material.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Lingyun Li, Guojian Wang, Yisheng Huang, Lizhen Zhang, Zhoubin Lin, Guofu Wang,