Intense and wide mid-infrared luminescence in bismuth-germanate glass co-doped with Ho3+/Er3+/Yb3+ ions
| Autor: | Dominik Dorosz, Agata Górny, Tomasz Ragin, Piotr Miluski, Marcin Kochanowicz, Agata Baranowska, R. Jadach, Marta Sołtys, Jacek Zmojda |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Ytterbium Materials science Laser diode Analytical chemistry chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Laser 01 natural sciences Bismuth germanate Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Ion law.invention Erbium chemistry.chemical_compound chemistry law 0103 physical sciences 0210 nano-technology Luminescence Holmium |
| Zdroj: | Infrared Physics & Technology. 92:139-143 |
| ISSN: | 1350-4495 |
| DOI: | 10.1016/j.infrared.2018.06.003 |
| Popis: | In this work, we focused on the possibility of obtaining intense and wide emission in the mid-infrared spectral range. The bismuth-germanate oxide glasses have been co-doped with erbium, holmium and ytterbium ions. Glasses have been synthesized in terms of high mid-infrared transmittance and low hydroxides content using low vacuum atmosphere (50–70 mBar). In order to maximize the mid-infrared luminescence, optimization of the rare earth ions content has been conducted. The highest emission intensity in the mid-IR has been observed in sample co-doped with molar concentration 0.1 Ho2O3/0.7 Er2O3/0.25 Yb2O3 under 980 nm laser diode excitation. Moreover, rare earth ions system enables to observe broadband mid-infrared luminescence in the range of 2.7–2.9 μm due to the energy transfer and emission band overlap phenomena. Furthermore, wide emission band (FWHM = 193 nm) and high energy transfer efficiency (η = 66.84%) from Yb3+ to Er3+ and Ho3+ ions are favorable from the perspective of further applications in mid-infrared fiber amplifiers and lasers. |
| Databáze: | OpenAIRE |
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