Author, as appears in the article.: Loiko, P A; Vilejshikova, E V; Mateos, X; Serres, J M; Dunina, E B; Kornienko, A A; Yumashev, K V; Aguilo, M; Diaz, F
Department: Química Física i Inorgànica
URV's Author/s: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Serres Serres, Josep Maria
Keywords: Stimulated-emission Spectroscopy Spectra Red Luminescence Laser operation Klu(wo4)(2) Ions Intensities Europium Double tungstates Absorption
Abstract: We report on a detailed spectroscopic study of Eu3+ ions in the monoclinic KYb(WO4)(2) crystal. The polarized room and low-temperature absorption spectra are measured. The maximum sigma(abs) corresponding to the F-7(1) -> D-5(1) transition is 1.32 x 10(-20) cm(2) at 534.2 nm with a bandwidth of 0.7 nm (for E parallel to N-m). The Stark sub-levels of the excited mulitplets are determined. A Judd-Ofelt analysis is applied to the Eu3+ :KYb(WO4)(2) crystal to determine the probability of spontaneous transitions, radiative lifetimes and luminescence branching ratios. Within the strong configuration interaction (SCI) approximation, the intensity parameters are Omega(2)=4.757, Omega(4)=2.295, Omega(6)=1.644 [10(-20) cm(2)] and Delta(f)=50160 cm(-1). The radiative lifetime of the D-5(0) state is 351 mu s. The maximum stimulated-emission cross-section corresponding to the F-7(1) -> D-5(1) transition is 1.44 x 10(-20) cm(2) at 703.2 nm (for E parallel to N-m). Under UV excitation, the Eu3+ :KYb(WO4)(2) crystal provides intense red photoluminescence with CIE coordinates, x=0.675, y=0.325. (C) 2016 Published by Elsevier B.V.
Thematic Areas: Química Optics Odontología Medicina ii Medicina i Materiais Interdisciplinar General chemistry Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Condensed matter physics Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciência de alimentos Chemistry (miscellaneous) Chemistry (all) Biotecnología Biophysics Biochemistry 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 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/submittedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Journal Of Luminescence. 183 217-225
APA: Loiko, P A; Vilejshikova, E V; Mateos, X; Serres, J M; Dunina, E B; Kornienko, A A; Yumashev, K V; Aguilo, M; Diaz, F (2017). Europium doping in monoclinic KYb(WO4)(2) crystal. Journal Of Luminescence, 183(), 217-225. DOI: 10.1016/j.jlumin.2016.11.046
Entity: Universitat Rovira i Virgili
Journal publication year: 2017
Publication Type: Journal Publications
Repositori URV