Growth and second-harmonic-generation of Bi3+- or Li+-doped GdCa4O(BO3)(3)crystals

Citation
Sj. Zhang et al., Growth and second-harmonic-generation of Bi3+- or Li+-doped GdCa4O(BO3)(3)crystals, J CRYST GR, 212(3-4), 2000, pp. 476-479
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF CRYSTAL GROWTH
ISSN journal
0022-0248 → ACNP
Volume
212
Issue
3-4
Year of publication
2000
Pages
476 - 479
Database
ISI
SICI code
0022-0248(200005)212:3-4<476:GASOBO>2.0.ZU;2-2
Abstract
The bismuth and lithium cations doped GdGa4O(BO3)(3) (GdCOB) crystals were successfully grown for the first time. The X-ray powder diffraction (XRPD) shows that the cell parameters of the doped crystals are slightly larger th an that of GdCOB. Intracavity second-harmonic-generation (SHG) experiments were carried out on 3 x 3 x 6 mm(3) GdCOB and doped GdCOB crystals along th e phase-matching (PM) direction (theta = 66.8 degrees, phi = 132.6 degrees) . The results show that the continuous wavelength (cw) green laser output p ower is 0.94 W for GdCOB crystals at 10 W LD pump power while it is 1 W and 1.02 W for the bismuth and lithium doped GdCOB crystals, respectively. Con sidering the fundamental laser power in the cavity, the intracavity SHG con version efficiency of GdCOB and bismuth, lithium cations doped GdCOB crysta ls are 21, 22.6 and 23%, respectively. The SHG conversion efficiency is imp roved by 8 and 10% when GdCOB is doped with bismuth and lithium cations. Th e effects of the doped cations on growth and SHG properties of GdCOB crysta l are discussed. (C) 2000 Elsevier Science B.V. All rights reserved.