Author, as appears in the article.: Basyrova, Liza; Loiko, Pavel; Maksimov, Roman; Shitov, Vladislav; Serres, Josep Maria; Griebner, Uwe; Petrov, Valentin; Aguilo, Magdalena; Diaz, Francesc; Mateos, Xavier;
Department: Química Física i Inorgànica
URV's Author/s: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Serres Serres, Josep Maria
Keywords: Ytterbium compounds Thermal behaviors Slope efficiencies Sintering Sesquioxides Optical spectroscopy Optical ceramics Nanostructured materials Lutetium compounds Light transmission Laser operations Laser operation Laser ablation Hot isostatic pressing Garnets Crystal-field splitting Continuous waves Comparative studies Ceramic microchip lasers Argon lasers Aluminum oxide Alumina
Abstract: We present a comparative study of two Lu-based oxide ceramics doped with Yb3+ ions, namely Yb:Lu3Al5O12 (garnet) and Yb:Lu2O3 (sesquioxide), promising for thin-disk lasers. The ceramics are fabricated using nano-powders of 3.6 at.% Yb:Lu2O3 and Al2O3 produced by laser ablation: Yb:Lu3Al5O12 - by vacuum sintering at 1800 degrees C for 5 h with the addition of 1 wt% TEOS as a sintering aid, and Yb:Lu2O3 - by vacuum pre-sintering at 1250 degrees C for 2 h followed by Hot Isostatic Pressing at 1400 degrees C for 2 h under Ar gas pressure of 207 MPa. The comparison includes the structure, Raman spectra, transmission, optical spectroscopy and laser operation. The crystal-field splitting of Yb3+ multiplets is revealed for Lu3Al5O12. A continuous-wave (CW) Yb:Lu3Al5O12 ceramic microchip laser generates 5.65 W at 1031.1 nm with a slope efficiency of 67.2%. In the quasi-CW regime, the peak power is scaled up to 8.83 W. The power scaling for the Yb:Lu2O3 ceramic laser is limited by losses originating from residual coloration and inferior thermal behavior.
Thematic Areas: Surfaces, coatings and films Química Process chemistry and technology Odontología Medicina ii Medicina i Materials science, ceramics Materials chemistry Materiais Interdisciplinar Geociências Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Electronic, optical and magnetic materials Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ceramics and composites Biotecnología Astronomia / física Arquitetura, urbanismo e design Arquitetura e urbanismo
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: josepmaria.serres@urv.cat f.diaz@urv.cat magdalena.aguilo@urv.cat xavier.mateos@urv.cat
Author identifier: 0000-0002-4299-538X 0000-0003-4581-4967 0000-0001-6130-9579 0000-0003-1940-1990
Record's date: 2024-07-27
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Ceramics International. 47 (5): 6633-6642
APA: Basyrova, Liza; Loiko, Pavel; Maksimov, Roman; Shitov, Vladislav; Serres, Josep Maria; Griebner, Uwe; Petrov, Valentin; Aguilo, Magdalena; Diaz, Franc (2021). Comparative study of Yb:Lu3Al5O12 and Yb:Lu2O3 laser ceramics produced from laser-ablated nanopowders. Ceramics International, 47(5), 6633-6642. DOI: 10.1016/j.ceramint.2020.10.253
Entity: Universitat Rovira i Virgili
Journal publication year: 2021
Publication Type: Journal Publications
Repositori URV