Autor segons l'article: Basyrova, Liza; Loiko, Pavel; Jing, Wei; Wang, Yicheng; Huang, Hui; Dunina, Elena; Kornienko, Alexey; Fomicheva, Liudmila; Viana, Bruno; Griebner, Uwe; Petrov, Valentin; Aguilo, Magdalena; Diaz, Francesc; Mateos, Xavier; Camy, Patrice;
Departament: Química Física i Inorgànica
Autor/s de la URV: Aguiló Díaz, Magdalena / Díaz Castrillón, Fernanda / Díaz González, Francisco Manuel / Mateos Ferré, Xavier
Paraules clau: Y2o3 Type structures Transparent ceramics Transparent ceramic Sesquioxides Sesquioxide Sc$-2$/o$-3$ Rare-earth ions Performance Optical-spectra Mean-grain size Luminescence Lu2o3 Laser operations Laser operation Judd-ofelt theory Hot-isostatic pressings Hot isostatic pressing Erlu2o3 Erbium ion Er-yag Energy-levels Crystal-field analysis Continuous-wave Ceramic materials Bixbyite Argon atmospheres
Resum: A transparent "mixed" 7 at.% Er:(Lu,Sc)(2)O-3 sesquioxide ceramic was fabricated by hot isostatic pressing of commercial sesquioxide powders at 1750 degrees C/200 MPa in argon atmosphere. It exhibited a cubic bixbyite-type structure (a = 10.198 angstrom), a mean grain size of 5.7 um and high low-signal transmission of 79.1 % in the near- IR. The spectroscopic properties of Er3+ ions were studied. For the I-4(11/2) -> I-4(13/2) transition, the stimulated-emission cross-section sigma(SE) is 1.30 x 10(-20) cm(2) at 2719 nm, the corresponding luminescence branching ratio B (JJ') is 19.9 % and the radiative lifetime of the I-4(11/2) state is 4.80 ms, as determined using a Judd-Ofelt theory accounting for intermediate configuration interaction. The crystal-field splitting of Er3+ multiplets was studied at 12 K. The ceramic exhibits a significant inhomogeneous broadening of spectral bands. An Er:(Lu,Sc)(2)O-3 ceramic laser generated 342 mW at 2.71 and 2.85 mu m with a high slope efficiency of 41.7 % (exceeding the Stokes limit) and a laser threshold of 125 mW.
Àrees temàtiques: Química Optics Odontología Medicina ii Medicina i Materiais Interdisciplinar General chemistry Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Condensed matter physics Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciência de alimentos Chemistry (miscellaneous) Chemistry (all) Biotecnología Biophysics Biochemistry Atomic and molecular physics, and optics Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: f.diaz@urv.cat fernanda.diaz@estudiants.urv.cat magdalena.aguilo@urv.cat xavier.mateos@urv.cat
Identificador de l'autor: 0000-0003-4581-4967 0000-0001-6130-9579 0000-0003-1940-1990
Data d'alta del registre: 2024-07-27
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S0022231321004890
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Journal Of Luminescence. 240
Referència de l'ítem segons les normes APA: Basyrova, Liza; Loiko, Pavel; Jing, Wei; Wang, Yicheng; Huang, Hui; Dunina, Elena; Kornienko, Alexey; Fomicheva, Liudmila; Viana, Bruno; Griebner, Uwe (2021). Spectroscopy and efficient laser operation around 2.8 mu m of Er:(Lu,Sc)(2)O-3 sesquioxide ceramics. Journal Of Luminescence, 240(), -. DOI: 10.1016/j.jlumin.2021.118373
DOI de l'article: 10.1016/j.jlumin.2021.118373
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2021
Tipus de publicació: Journal Publications
Repositori URV