Author, as appears in the article.: Volokitina, Anna; David, Samuel Paul; Loiko, Pavel; Subbotin, Kirill; Titov, Anatoly; Lis, Denis; Sole, Rosa Maria; Jambunathan, Venkatesan; Lucianetti, Antonio; Mocek, Tomas; Camy, Patrice; Chen, Weidong; Griebner, Uwe; Petrov, Valentin; Aguilo, Magdalena; Diaz, Francesc; Mateos, Xavier
Department: Química Física i Inorgànica
URV's Author/s: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Mateos Ferré, Xavier / Solé Cartañà, Rosa Maria / Volokitina, Anna
Keywords: Znwo4 Zinc tungstate Ytterbium lasers Yb3+ Yb-klu(wo4)(2) laser Stark splitting Single-crystals Power Performance Optical spectroscopy Nagd(wo4)(2) Luminescence Laser operation Growth Crystal-field analysis Continuous-wave
Abstract: © 2020 Monoclinic ytterbium-lithium codoped zinc monotungstate crystal (Yb3+,Li+:ZnWO4) is a promising material for laser opertation at ~1.06 μm. Absorption, σabs, and stimulated-emission, σSE, cross-sections are determined for light polarized along the optical indicatrix axes, E || Np, Nm and Ng. At room temperature, the maximum σSE amounts to 2.81 × 10−20 cm2 at 1055.6 nm (for E || Np) and the gain bandwidth reaches ~22 nm (for E || Ng). The radiative lifetime of the upper laser level is 0.37 ms. The Stark splitting of Yb3+ multiplets is resolved with low-temperature (6 K) spectroscopy revealing a relatively large total splitting of the ground-state, ΔE(2F7/2) = 804 cm−1, being remarkably high as compared to other Yb3+-doped tungstate crystals. A notable inhomogeneous broadening of the zero-phonon line is detected at 6 K. A continuous-wave diode-pumped 1.8 at.% Yb3+,Li+:ZnWO4 laser generated a maximum output power of 2.90 W at ~1059 nm with a slope efficiency of 57.9% and a linearly polarized output (E || Np). Yb3+,Li+:ZnWO4 is attractive for broadly tunable and mode-locked oscillators.
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: anna.volokitina@estudiants.urv.cat magdalena.aguilo@urv.cat rosam.sole@urv.cat xavier.mateos@urv.cat f.diaz@urv.cat
Author identifier: 0000-0002-6091-6534 0000-0001-6130-9579 0000-0002-5769-4141 0000-0003-1940-1990 0000-0003-4581-4967
Record's date: 2024-10-19
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0022231320317786?via%3Dihub
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Journal Of Luminescence. 231 (117811): 117811-
APA: Volokitina, Anna; David, Samuel Paul; Loiko, Pavel; Subbotin, Kirill; Titov, Anatoly; Lis, Denis; Sole, Rosa Maria; Jambunathan, Venkatesan; Lucianett (2021). Monoclinic zinc monotungstate Yb3+,Li+:ZnWO4: Part II. Polarized spectroscopy and laser operation. Journal Of Luminescence, 231(117811), 117811-. DOI: 10.1016/j.jlumin.2020.117811
Article's DOI: 10.1016/j.jlumin.2020.117811
Entity: Universitat Rovira i Virgili
Journal publication year: 2021
Publication Type: Journal Publications
Repositori URV