Growth and Spectra Properties of Nd:GdxY1-xCa4O(BO3)3 Crystal
Nd:GdxY1-xCa4O(BO3)3晶体的生长及其光谱性能研究

GdxY1-xCa4O(BO3)3 (GdYCOB ) crystal is a kind of valuable nonlinear optical crystal. It can realize THG noncritical phase-matching for Nd:YAG laser and keep stable mechanical and chemical properties. Nd3+, Gd3+ and Y3+ are all rare-earth ions, so we can receive Nd:GdxY1-xCa4O(BO3)3 (Nd:GdYCOB) crystal by a few Nd3+ ions doping. Combined laser action of the Nd3+ ions and nonlinear optical properties of GdYCOB host crystal in the mixed crystal, a new kind of self-frequency doubling crystal Nd:GdYCOB was obtained. The synthesis and crystal growth of Nd:GdYCOB crystal were reported in this paper. The transparent spectrum, fluorescent spectrum, and fluorescence lifetime of Nd:GdYCOB crystal were first measured at room temperature.