Author, as appears in the article.: Loiko, Pavel; Wang, Yicheng; Maria Serres, Josep; Mateos, Xavier; Aguilo, Magdalena; Diaz, Francesc; Zhang, Lizhen; Lin, Zhoubin; Lin, Haifeng; Zhang, Ge; Dunina, Elena; Kornienko, Alexey; Fomicheva, Liudmila; Petrov, Valentin; Chen, Weidong
Department: Química Física i Inorgànica
URV's Author/s: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Serres Serres, Josep Maria
Keywords: Tungstate crystals Thulium ions Stark splitting Spectroscopy Laser operation
Abstract: © 2018 Elsevier B.V. Tm3+-doped monoclinic magnesium monotungstate (MgWO4) is a promising material for lasers emitting at above 2 μm. Stark splitting of3H6to1G4Tm3+multiplets in MgWO4is determined using low-temperature spectroscopy, calculated within crystal-field theory modified for the case of an intermediate configuration interaction (ICI) and analyzed in terms of the barycenter plot. Tm3+:MgWO4features a large Stark splitting of the ground-state (3H6), 633 cm−1, and high transition cross-sections for polarized light due to its low-symmetry structure. A unique feature of Tm3+:MgWO4to provide a naturally polarized emission at >2 μm, as well as its suitability for broadly tunable and mode-locked lasers in this spectral range are argued. The first tunable and vibronic Tm3+:MgWO4lasers are demonstrated, yielding a continuous tuning from 1897 to 2062 nm in the former case. A vibronic laser operated at even longer wavelengths up to 2093 nm due to electron-phonon coupling with low-energy phonons of the crystalline host. Moreover, the optical indicatrix axes of high-refractive-index biaxial MgWO4are assigned.
Thematic Areas: Química Planejamento urbano e regional / demografia Odontología Metals and alloys Metallurgy & metallurgical engineering Mechanics of materials Mechanical engineering Materials science, multidisciplinary Materials science Materials chemistry Materiais Matemática / probabilidade e estatística Interdisciplinar Geociências Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas i Ciências ambientais Ciências agrárias i Chemistry, physical Biotecnología Astronomia / física Antropologia / arqueologia Administração pública e de empresas, ciências contábeis e turismo
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 09258388
Author's mail: josepmaria.serres@urv.cat magdalena.aguilo@urv.cat xavier.mateos@urv.cat f.diaz@urv.cat
Author identifier: 0000-0002-4299-538X 0000-0001-6130-9579 0000-0003-1940-1990 0000-0003-4581-4967
Record's date: 2024-10-19
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Journal Of Alloys And Compounds. 763 581-591
APA: Loiko, Pavel; Wang, Yicheng; Maria Serres, Josep; Mateos, Xavier; Aguilo, Magdalena; Diaz, Francesc; Zhang, Lizhen; Lin, Zhoubin; Lin, Haifeng; Zhang, (2018). Monoclinic Tm:MgWO4crystal: Crystal-field analysis, tunable and vibronic laser demonstration. Journal Of Alloys And Compounds, 763(), 581-591. DOI: 10.1016/j.jallcom.2018.05.237
Entity: Universitat Rovira i Virgili
Journal publication year: 2018
Publication Type: Journal Publications
Repositori URV