NDLI: Thulium doped monoclinic KLu(WO4)2 single crystals: growth and spectroscopy

Content Provider	Springer Nature Link
Author	Silvestre, O. Pujol, M.C. Rico, M. Güell, F. Aguiló, M. Díaz, F.
Copyright Year	2007
Abstract	This paper presents the crystal growth and optical characterization of thulium-doped KLu(WO4)2 (KLuW). Thulium-doped KLuW macrodefect-free monoclinic single crystals (a*×b×c≈10×7×15 mm3) were grown by the top seeded solution growth slow cooling method with dopant concentrations of 0.5%, 1%, 3% and 5% atomic in solution. The evolution of unit cell parameters in relation with thulium doping was studied by X-ray powder patterns. Thulium energy levels in the KLuW host were determined by 6 K polarized optical absorption. The Judd–Ofelt parameters determined were Ω2=9.01×10-20 cm2, Ω4=1.36×10-20 cm2 and Ω6=1.43×10-20 cm2. The maximum emission cross section for the 1.9 μm emission, calculated by Füchtbauer–Ladenburg method, is 1.75×10-20 cm2, at 1845 nm with E//Nm. The intensity decay time from the emitting levels 1 G 4 and 3 H 4 levels in relation to the concentration were studied. For the lowest thulium concentration, the measured decay times from 1 G 4 and 3 H 4 emitting levels are 140 μs and 230 μs, respectively.
Starting Page	707
Ending Page	716
Page Count	10
File Format	PDF
ISSN	09462171
Journal	Applied Physics B
Volume Number	87
Issue Number	4
e-ISSN	14320649
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-05-22
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physics and Applied Physics in Engineering Optical Spectroscopy, Ultrafast Optics Quantum Optics, Quantum Electronics, Nonlinear Optics Laser Technology and Physics, Photonics Physical Chemistry Electromagnetism, Optics and Lasers
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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