Autor segons l'article: Eremeev K; Loiko P; Braud A; Camy P; Zhang J; Xu X; Zhao Y; Liu P; Balabanov S; Dunina E; Kornienko A; Fomicheva L; Mateos X; Griebner U; Petrov V; Wang L; Chen W
Departament: Química Física i Inorgànica
Autor/s de la URV: Mateos Ferré, Xavier
Paraules clau: Rare-earth ions tm3+ re3+-doped y2o3 optical-spectra operation nm mu-m energy-levels czochralski growth crystal-field analysis
Resum: We report on a detailed spectroscopic study of a Tm3+-doped transparent sesquioxide ceramic based on a solid-solution (lutetia – yttria, LuYO3) composition. The ceramic was fabricated using commercial oxide powders by hot isostatic pressing at 1600°C for 3 h at 190 MPa argon pressure. The most intense Raman peak in Tm:LuYO3 at 385.4 cm−1 takes an intermediate position between those for the parent compounds and is notably broadened (linewidth: 12.8 cm−1). The transition intensities of Tm3+ ions were calculated using the Judd-Ofelt theory; the intensity parameters are W2 = 2.537, W4 = 1.156 and W6 = 0.939 [1020 cm2]. For the 3F4 → 3H6 transition, the stimulated-emission cross-section amounts to 0.27 × 10−20 cm2 at 2059nm and the reabsorption-free luminescence lifetime is 3.47 ms (the 3F4 radiative lifetime is 3.85 ± 0.1 ms). The Tm3+ ions in the ceramic exhibit long-wave multiphonon-assisted emission extending up to at least 2.35 µm; a phonon sideband at 2.23 µm is observed and explained by coupling between electronic transitions and the dominant Raman mode of the sesquioxides. Low temperature (12 K) spectroscopy reveals a significant inhomogeneous spectral broadening confirming formation of a substitutional solid-solution. The mixed ceramic is promising for ultrashort pulse generation at >2 µm.
Àrees temàtiques: Química Optics Materials science, multidisciplinary Materiais Interdisciplinar Engenharias iv Engenharias iii Engenharias ii Electronic, optical and magnetic materials Biotecnología Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: xavier.mateos@urv.cat
Identificador de l'autor: 0000-0003-1940-1990
Data d'alta del registre: 2024-07-27
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://opg.optica.org/ome/fulltext.cfm?uri=ome-12-9-3749&id=497555
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Optical Materials Express. 12 (9): 3749-3762
Referència de l'ítem segons les normes APA: Eremeev K; Loiko P; Braud A; Camy P; Zhang J; Xu X; Zhao Y; Liu P; Balabanov S; Dunina E; Kornienko A; Fomicheva L; Mateos X; Griebner U; Petrov V; Wa (2022). Spectroscopy of solid-solution transparent sesquioxide laser ceramic Tm:LuYO3. Optical Materials Express, 12(9), 3749-3762. DOI: 10.1364/ome.471492
DOI de l'article: 10.1364/ome.471492
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2022
Tipus de publicació: Journal Publications