Liquid phase epitaxy growth and visible emission of Tb3+,Gd3+:LiYF4 layers

被引:1
|
作者
Baillard, Amandine [1 ]
Brasse, Gurvan [1 ]
Loiko, Pavel [1 ]
Sole, Rosa Maria [2 ]
Aguilo, Magdalena [2 ]
Diaz, Francesc [2 ]
Mateos, Xavier [2 ]
Benayad, Abdelmjid [1 ]
Menard, Vivien [1 ]
Braud, Alain [1 ]
Camy, Patrice [1 ]
机构
[1] Univ Caen, Ctr Rech Ions Mat & Photon CIMAP, UMR 6252 CEA CNRS ENSICAEN, 6 Blvd Marechal Juin, F-14050 Caen 4, France
[2] Univ Rovira i Virgili URV, Fis & Cristallog Mat FiCMA, Marcel Li Domingo 1, Tarragona 43007, Spain
关键词
WAVE-GUIDE LASER; GREEN; TB3+; OPERATION; PHOSPHORS; CRYSTALS; IONS;
D O I
10.1364/OME.491569
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Single-crystalline layers of 12 at.% Tb3+, 5 at.% Gd3+:LiYF4 were grown by the liquid phase epitaxy method on (001) oriented bulk undoped LiYF4 substrates using LiF as a solvent. The growth temperature was 737-740 & DEG;C, the growth duration was 15 -25 min, and the layer thickness was 40-90 & mu;m. The structural, morphological, vibronic and spectroscopic properties of the layers were studied. Tb3+ ions were uniformly distributed in the layers with no diffusion into the substrate. Polarized Raman spectroscopy confirmed the orientation of the layers (growth along the [001] direction). Under excitation in the blue, the layers exhibited intense green emission. For the 5D4-, 7F5 Tb3+ transition, the peak stimulated-emission cross-section is 1.28 x 10-21 cm2 at 542.0 nm for at-polarization. The luminescence lifetime of the 5D4 Tb3+ state is 5.05 ms at room temperature. The crystal-field splitting of Tb3+ multiplets was determined at low temperature. The developed epitaxies are promising for green and yellow waveguide lasers.& COPY; 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用
收藏
页码:2355 / 2368
页数:14
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