Author, as appears in the article.: Loiko, P. A.; Vilejshikova, E. V.; Mateos, X.; Serres, J. M.; Dashkevich, V. I.; Orlovich, V. A.; Yasukevich, A. S.; Kuleshov, N. V.; Yumashev, K. V.; Grigoriev, S. V.; Vatnik, S. M.; Bagaev, S. N.; Pavlyuk, A. A.;
Department: Química Física i Inorgànica
URV's Author/s: Mateos Ferré, Xavier / Serres Serres, Josep Maria
Keywords: Tunable laser operation Stimulated-emission Single-crystals Raman-scattering Photoluminescence Phosphors Near-uv Nay(wo4)(2) Mu-m Luminescence properties Luminescence Europium Double tungstates Absorption
Abstract: We report on growth and detailed spectroscopic study of Eu3+-doped tetragonal sodium gadolinium double tungstate, Eu:NaGd(WO4)(2), a new promising crystal for deep-red lasers. Large-volume crystal doped with 4.9 at.% Eu is grown by Czochralski method along the [001] crystallographic direction. Absorption of Eu3+ ions is studied at room temperature (RT) and at 6 K. For the absorption band related to the F-7(1) -> D-5(1) transition suitable for pumping of Eu:NaGd(WO4)(2), the maximum cross-section is sigma(abs) = 1.2 x 10(-21) cm(2) at 535.5 nm with the full width at half maximum (FWHM) of 3.1 nm (at RT, for E parallel to a polarization). For the D-5(0) -> F-7(4) transition, the maximum stimulated-emission cross-section is sigma(SE) = 1.6 x 10(-21) cm(2) at 698.3 nm (RT, E parallel to c polarization). Lifetime of the D-5(0) state is 490 +/- 10 mu s (at RT). Under UV excitation, Eu:NaGd(WO4)(2) provides intense red emission with CIE coordinates (x = 0.671, y = 0329). (C) 2016 Elsevier B.V. All rights reserved.
Thematic Areas: Spectroscopy Química Physical and theoretical chemistry 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
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: josepmaria.serres@urv.cat xavier.mateos@urv.cat
Author identifier: 0000-0002-4299-538X 0000-0003-1940-1990
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Optical Materials. 57 1-7
APA: Loiko, P. A.; Vilejshikova, E. V.; Mateos, X.; Serres, J. M.; Dashkevich, V. I.; Orlovich, V. A.; Yasukevich, A. S.; Kuleshov, N. V.; Yumashev, K. V.; (2016). Spectroscopy of tetragonal Eu:NaGd(WO4)(2) crystal. Optical Materials, 57(), 1-7. DOI: 10.1016/j.optmat.2016.04.003
Entity: Universitat Rovira i Virgili
Journal publication year: 2016
Publication Type: Journal Publications
Repositori URV