| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 08015 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Optical Materials | |
| DOI | https://doi.org/10.1051/epjconf/202533508015 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533508015
Optical spectroscopy of erbium-doped fluorohafnate glasses for 2.8 µm lasers
1 Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), UMR 6252 CEA-CNRS-ENSICAEN, Université de Caen Normandie, 6 Boulevard Maréchal Juin, 14050 Caen, France
2 Prokhorov General Physics Institute RAS, Laboratory of Crystal and Glass Spectroscopy, 38 Vavilov St., 119991 Moscow, Russian Federation
3 Kurnakov Institute of General and Inorganic Chemistry RAS, Laboratory of High Purity Substances, 31 Leninsky Ave., 119991 Moscow, Russian Federation
4 Vitebsk State Technological University, 210035 Vitebsk, Belarus
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 22 September 2025
Abstract
Fluorohafnate glasses (HfF4–BaF2–LaF3–AlF3–NaF) doped with erbium ions were fabricated by the melt-quenching technique at 870 °C in argon atmosphere, and their spectroscopic properties were studied. The glasses exhibit a low phonon energy (575 cm-1), a broadband mid-infrared emission (stimulated-emission cross-section: 0.51×10-20 cm2 at 2.76 µm), and long luminescence lifetimes of the 4I11/2 and 4I13/2 manifolds making them attractive for 2.8-µm laser sources.
© The Authors, published by EDP Sciences, 2025
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