Autor segons l'article: Subbotin K; Titov A; Lis D; Zimina Y; Didenko Y; Elabedine GZ; Eremeev K; Solé RM; Aguiló M; Volkov P; Popov P; Chernova E; Díaz F; Camy P; Loiko P; Mateos X
Departament: Química Física i Inorgànica
Autor/s de la URV: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Solé Cartañà, Rosa Maria
Paraules clau: Thulium ions Raman spectra Molybdates Luminescence Czochralski method Crystal-structure Crystal structure tungstates thulium ions sr single-crystals raman spectra oxidative dehydrogenation mg magnesium molybdate luminescence laser operation ions czochralski method crystal structure conductivity
Resum: Thulium-doped magnesium molybdate single-crystal (Tm3+:MgMoO4) was grown by the Czochralski method (melting point: 1322 °C). The actual Tm3+ doping level was measured to be 0.1 at.% (the segregation coefficient was only 0.02). Tm:MgMoO4 belongs to the monoclinic class (sp. gr. C2/m, lattice constants: a = 10.2769(2) Å, b = 9.2898(5) Å, c = 7.0269(4) Å, β = 106.898(6)°). The thermal expansion tensor of this crystal is determined. Its thermal conductivity is also measured at 50–300 K (at room temperature, it amounts to 2.64 Wm−1K−1). Polarized Raman spectra are presented and the strongest mode is found at 957 cm−1. Optical spectroscopy of Tm3+ ions is studied indicating broad emission bands extending beyond 2 μm (the 3F4 → 3H6 transition) and a long lifetime of the 3F4 excited-state (1.972 ms). This makes Tm:MgMoO4 promising for broadly tunable and mode-locked lasers, when the technological problem of fabricating crystals with higher Tm3+ concentrations will be solved.
Àrees temàtiques: Spectroscopy Química Physical and theoretical chemistry Physical and theoretical c Organic chemistry Optics Odontología Medicina ii Materials science, multidisciplinary Materials science Materiais Interdisciplinar Inorganic chemistry General computer science Engenharias iv Engenharias iii Engenharias ii Electronic, optical and magnetic materials Electrical and electronic engineering Computer science (miscellaneous) Ciências ambientais Ciência de alimentos Biotecnología Biodiversidade 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 magdalena.aguilo@urv.cat rosam.sole@urv.cat xavier.mateos@urv.cat
Identificador de l'autor: 0000-0003-4581-4967 0000-0001-6130-9579 0000-0002-5769-4141 0000-0003-1940-1990
Data d'alta del registre: 2024-08-03
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Optical Materials. 138
Referència de l'ítem segons les normes APA: Subbotin K; Titov A; Lis D; Zimina Y; Didenko Y; Elabedine GZ; Eremeev K; Solé RM; Aguiló M; Volkov P; Popov P; Chernova E; Díaz F; Camy P; Loiko P; M (2023). Growth, structure refinement, thermal expansion and optical spectroscopy of Tm3+-doped MgMoO4. Optical Materials, 138(), -. DOI: 10.1016/j.optmat.2023.113648
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2023
Tipus de publicació: Journal Publications
Repositori URV