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Monoclinic zinc monotungstate Yb3+,Li+:ZnWO4: Part II. Polarized spectroscopy and laser operation

  • Identification data

    Identifier: imarina:9138982
    Handle: https://hdl.handle.net/20.500.11797/imarina9138982
    Authors:
    Volokitina, AnnaDavid, Samuel PaulLoiko, PavelSubbotin, KirillTitov, AnatolyLis, DenisSole, Rosa MariaJambunathan, VenkatesanLucianetti, AntonioMocek, TomasCamy, PatriceChen, WeidongGriebner, UwePetrov, ValentinAguilo, MagdalenaDiaz, FrancescMateos, Xavier
    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.

  • Others:

    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
    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
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2021
    Publication Type: Journal Publications

  • Keywords:

    Atomic and Molecular Physics, and Optics,Biochemistry,Biophysics,Chemistry (Miscellaneous),Condensed Matter Physics,Optics
    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
    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

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