Author, as appears in the article.: Mateos, X. ; Loiko, P. ; Wang, Y. ; Serres, J. M. ; Aguiló, M. ; Díaz, F. ; Zhang, L: ; Lin, Z. ; Lin, H. ; Zhang, G. ; Vilejshikova, E. ; Dunina, E. ; Kornienko, A. ; Fomicheva, L. ; Petrov, V. ; Griebner, W. ; Chen, W.
Department: Química Física i Inorgànica
e-ISSN: 1873-4669
URV's Author/s: MATEOS FERRÉ, XAVIER; Loiko, P. ; Wang, Y. ; Serres, J. M. ; AGUILÓ DÍAZ, MAGDALENA; DÍAZ GONZÁLEZ, FRANCISCO MANUEL; Zhang, L: ; Lin, Z. ; Lin, H. ; Zhang, G. ; Vilejshikova, E. ; Dunina, E. ; Kornienko, A. ; Fomicheva, L. ; Petrov, V. ; Griebner, W. ; Chen, W.
Keywords: Stark splitting Thulium ions Tungstate crystals
Abstract: Tm3+-doped monoclinic magnesium monotungstate (MgWO4) is a promising material for lasers emitting at above 2 µm. Stark splitting of 3H6 to 1G4 Tm3+ multiplets in MgWO4 is 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+:MgWO4 features 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+:MgWO4 to 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+:MgWO4 lasers 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 MgWO4 are assigned
Research group: Física i Cristal·lografia de Nanomaterials Física i Cristal.lografia de Materials
Thematic Areas: Chemistry Química Química
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 0925-8388
Author identifier: 0000-0003-1940-1990; ; ; ; 0000-0001-6130-9579; 0000-0003-4581-4967; ; ; ; ; ; ; ; ; ; ;
Record's date: 2018-07-25
Last page: 591
Journal volume: 763
Papper version: info:eu-repo/semantics/acceptedVersion
Funding program: altres; Icrea Academia; 2010ICREA-02 altres; Grupos consolidados; 2014SGR1358 plan; Retos; TEC 2014-55948-R plan; Retos; MAT2016-75716-C2-1-R (AEI/FEDER,UE altres; Instrument Project of Chinese Academy of Sciences ; YZ201414 altres; China Scholarship Council; 201504910629 altres; China Scholarship Council; 201504910418 altres; National Key Research and Development Program of China ; 2016YFB0701002 altres; Strategic Priority Research Program of the Chinese Academy of Sciences; XDB20000000 altres; Key Project of Science and Technology of Fujian Province; 2016H0045 altres; National Natural Science Foundation of China ; 21427801 altres; National Natural Science Foundation of China ; 61575199 altres; National Natural Science Foundation of China ; 11404332
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2018
First page: 581
Publication Type: Article Artículo Article
Repositori URV