Growth and spectroscopic investigation of Yb/Nd co-doped KLu(WO4)(2) laser crystals

摘要

Single crystals of Yb, Nd: KLu(WO4)(2) (Yb, Nd: KLW) of dimensions up to 40mmx 40mmx5mm have been grown by top-seeded solution growth (TSSG) method. X-ray powder diffraction pattern was measured and compared with that of Nd: KLuW and Yb: KLuW. Absorption and fluorescence spectra were measured at room temperature. The Judd-Ofelt theory was applied to analyze the spectrum of Nd, Yb: KLuW crystal. The intensity parameters Omega, (t=2, 4 and 6) were calculated as Q(2)=20.68x 10(-20)cm(2), Omega(4)=11.04x10(-20)cm(2), Omega(6)=6.74x 10(-20)cm(2) respectively, with a root mean square deviation of 0.58x 10(-20) cm(2). (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.