Autor según el artículo: 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
Departamento: Química Física i Inorgànica
Autor/es de la URV: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Solé Cartañà, Rosa Maria
Palabras clave: 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
Resumen: 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.
Áreas temáticas: 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
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: f.diaz@urv.cat magdalena.aguilo@urv.cat rosam.sole@urv.cat xavier.mateos@urv.cat
Identificador del autor: 0000-0003-4581-4967 0000-0001-6130-9579 0000-0002-5769-4141 0000-0003-1940-1990
Fecha de alta del registro: 2024-08-03
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Optical Materials. 138
Referencia 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
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2023
Tipo de publicación: Journal Publications
Repositori URV