Solid-solution Er:(Sc,Y)2O3 transparent ceramics: Optical spectroscopy , inhomogeneous line broadening, C3i sites and mid-infrared laser operation

被引：0

作者：

Normani, Simone ^{[1
]}

Loiko, Pavel ^{[1
]}

Maksimov, Roman ^{[2
,3
]}

Basyrova, Liza ^{[1
]}

Shitov, Vladislav ^{[3
]}

Dunina, Elena ^{[4
]}

Kornienko, Alexey ^{[4
]}

Fomicheva, Liudmila ^{[5
]}

Braud, Alain ^{[1
]}

Hideur, Ammar

Viana, Bruno ^{[6
]}

Camy, Patrice ^{[1
]}

机构：

[1] Univ Caen Normandie, Ctr Rech Ions Materiaux & Photon CIMAP, UMR 6252, CEA,CNRS,ENSICAEN, 6 Blvd Marechal Juin, F-14050 Caen 4, France

[2] Ural Fed Univ, 19 Mira St, Ekaterinburg 620002, Russia

[3] Russian Acad Sci, Inst Electrophys, Ural Branch, 106 Amundsen St, Ekaterinburg 620016, Russia

[4] Vitebsk State Technol Univ, 72 Moskovskaya Ave, Vitebsk 210035, BELARUS

[5] Belarusian State Univ Informat & Radioelect, 6 Brovki St, Minsk 220027, BELARUS

[6] PSL Univ, Inst Rech Chim Paris, Chim ParisTech, CNRS, 11 Rue Pierre & Marie Curie, F-75005 Paris, France

来源：

OPTICAL MATERIALS | 2024年 / 157卷

关键词：

Transparent ceramics; Sesquioxides; Erbium ions; Luminescence; Mid-infrared lasers; HIGH-MELTING SESQUIOXIDES; X-RAY-DIFFRACTION; RARE-EARTH IONS; MAGNETIC-SUSCEPTIBILITY; PROGRESS; GROWTH; CRYSTALS; Y2O3; MICROSTRUCTURE; FABRICATION;

D O I：

10.1016/j.optmat.2024.116288

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rare-earth-doped transparent sesquioxide laser ceramics enable engineering of their gain bandwidths via solid-solution compositions exhibiting a strong inhomogeneous spectral line broadening. We report on a detailed spectroscopic study and the first mid-infrared laser operation of Erbium-doped yttria-scandia, (ScxY1-x)(2)O-3, ceramics fabricated by vacuum sintering at 1750 degrees C from laser-ablated nanoparticles. The effect of the Sc fraction on the spectral and kinetic properties of Er3+ emission around 2.8 mu m owing to the I-4(11/2) -> I-4(13/2) is revealed. The inhomogeneous spectral line broadening leading to merging of individual Stark sub-levels of Er3+ multiplets is evidenced by low-temperature spectroscopy. An original method of quantifying the distribution of dopant Er-3+ ions over C-2 and C-3i symmetry sites in the cubic bixbyite structure is suggested based on the transition probabilities derived by the Judd-Ofelt theory. In the parent Er:Y2O3 ceramic, the Er3+ ions nearly follow the ideal distribution with 3/4 of ions residing in C-2 sites, and Sc addition skews it in favor of C-3i sites. A continuous-wave Er:(Sc,Y)(2)O-3 ceramic laser generated 312 mW at 2716 nm with a slope efficiency of 18.6 % and a laser threshold of 128 mW.

引用

页数：11