Chinese Journal of Lasers B, 2001, 10 (5): 387, 网络出版: 2006-08-10
The Spectroscopic Properties of Tm and Ho Co-doped YVO4 Crystal
摘要
Abstract
In this paper, the measured results of spectroscopic properties for Tm, Ho co-doped YVO4 crystals are reported. The absorption spectra, fluorescence spectra and calculated spectroscopic parameters are given. The processes of sensitized luminescence of Ho3+ by Tm3+ with 805 nm LD pumping were investigated. It was found that Tm3+ ion in YVO4 has a larger uniform absorption width (~26 nm) and a larger peak and integreted cross-section of absorption at 800nm (~1.4×10-20 cm2 and 246×10-20 cm) than that in YAG and YLF. The high energy transfer efficiency from Tm3+ to Ho3+ (up to 87%) and low pumping threshold (15 mW) show that Tm3+ can efficiently sensitize Ho3+ in YVO4 crystal. The dependence of ~2 μm emission for Ho3+ on the Tm, Ho doping concentrations was preliminarily analyzed and discussed.
CHEN Jinkai, YANG Wenqin, WU Meiqin, Zhuang Jian. The Spectroscopic Properties of Tm and Ho Co-doped YVO4 Crystal[J]. Chinese Journal of Lasers B, 2001, 10(5): 387. CHEN Jinkai, YANG Wenqin, WU Meiqin, Zhuang Jian. [J]. 中国激光(英文版), 2001, 10(5): 387.