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Monoclinic zinc monotungstate Yb.sup.3+./sup.,Li.sup.+./sup.:ZnWO.sub.4./sub.: Part II. Polarized spectroscopy and laser operation
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SYSNO ASEP 0541841 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Monoclinic zinc monotungstate Yb3+,Li+:ZnWO4: Part II. Polarized spectroscopy and laser operation Author(s) Volokitina, A. (ES)
Paul David, Samuel (FZU-D)
Loiko, P. (FR)
Subbotin, K. (RU)
Titov, A. (RU)
Lis, D. (RU)
Solé, R.M. (ES)
Jambunathan, Venkatesan (FZU-D)
Lucianetti, Antonio (FZU-D) RID, ORCID
Mocek, Tomáš (FZU-D) RID, ORCID, SAI
Camy, P. (FR)
Chen, W. (DE)
Griebner, U. (DE)
Petrov, V. (DE)
Aguilo, M. (ES)
Diaz, F. (ES)
Mateos, X. (ES)Number of authors 17 Article number 117811 Source Title Journal of Luminescence. - : Elsevier - ISSN 0022-2313
Roč. 231, Mar (2021)Number of pages 12 s. Language eng - English Country NL - Netherlands Keywords zinc tungstate ; ytterbium lasers ; optical spectroscopy ; stark splitting ; luminescence ; laser operation Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects EF15_006/0000674 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LO1602 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000609095300010 EID SCOPUS 85097639114 DOI 10.1016/j.jlumin.2020.117811 Annotation 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( 2 F7/2) = 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+:
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1016/j.jlumin.2020.117811
Number of the records: 1