Tellurite-germanate ZnTe: glass-ceramics doped with EuF3 for optical fiber application

Magdalena Lesniak; Bartłomiej Starzyk; Marcin Kochanowicz; Marta Kuwik; Jacek Zmojda; Piotr Miluski; G. Lesly Jiménez; Agata Baranowska; Jan Dorosz; Wojciech Pisarski; Joanna Pisarska; Dominik Dorosz

doi:10.1117/12.2620989

25 May 2022 Tellurite-germanate ZnTe: glass-ceramics doped with EuF₃ for optical fiber application

Magdalena Lesniak, Bartłomiej Starzyk, Marcin Kochanowicz, Marta Kuwik, Jacek Zmojda, Piotr Miluski, G. Lesly Jiménez, Agata Baranowska, Jan Dorosz, Wojciech Pisarski, Joanna Pisarska, Dominik Dorosz

Author Affiliations +

Proceedings Volume 12142, Fiber Lasers and Glass Photonics: Materials through Applications III; 121420E (2022) https://doi.org/10.1117/12.2620989
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

Eu³⁺ - doped oxyfluoride tellurite-germanate glass-ceramics were fabricated by the controlled crystallization method. The microstructure and structure of samples were analysed using x-ray diffraction (XRD), transmission electron microscopy (TEM), and infrared spectroscopy (IR). The EuF₃ introduction caused the rise of the non-bridging oxygens/fluorides in glass network in a consequence of the [TeO,F₄] and [GeO,F₄] structural units transformation into the [TeO,F₃]/[TeO,F₃₊₁], and [GeO,F₆], respectively. These changes were caused by Eu³⁺ ions, which played the role as a network modifier and led to the new non-bridging oxygens/fluorides Te–O,F− Eu³⁺O,F−–Te, and Ge– O,F−Eu³⁺O,F−–Ge, linkages formation and the ZnTe crystalline phase. The structure changes caused by the Eu3 + ions incorporation in the crystalline phase have been discussed in accordance to analysed the photoluminescence (PL) spectra and decay curves. It was showed a significant increase of the 5D0 → 7F1 magnetic-dipole transition intensity and decay times for transparent glass-ceramics sample. It confirmed the migration of Eu3+ ions from the amorphous network into ZnTe nanocrystals.

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Magdalena Lesniak, Bartłomiej Starzyk, Marcin Kochanowicz, Marta Kuwik, Jacek Zmojda, Piotr Miluski, G. Lesly Jiménez, Agata Baranowska, Jan Dorosz, Wojciech Pisarski, Joanna Pisarska, and Dominik Dorosz "Tellurite-germanate ZnTe: glass-ceramics doped with EuF₃ for optical fiber application", Proc. SPIE 12142, Fiber Lasers and Glass Photonics: Materials through Applications III, 121420E (25 May 2022); https://doi.org/10.1117/12.2620989

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