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Title: Up-conversion luminescence in low phonon heavy metal oxide glass co-doped with Er3+/Ho3+ ions
Authors: Ragiń, Tomasz
Baranowska, Agata
Kuwik, Marta
Górny, Agata
Żmojda, Jacek
Kochanowicz, Marcin
Miluski, Piotr
Jadach, Renata
Dorosz, Dominik
Keywords: luminescence; heavy metal oxide; heavy metal glasses; bismuth; germanium oxides; luminescence spectroscopy
Issue Date: 2018
Citation: Photonics Letters of Poland, Vol. 10, no. 1 (2018), s. 2-4
Abstract: In this paper, heavy metal oxide glasses co-doped with erbium and holmium ions have been synthesized. Glass composition, based on bismuth and germanium oxides, has been selected in terms of high thermal stability (∆T = 125 °C), high refractive index (n = 2.19) and low maximum phonon energy (hνmax = 724 cm⁻¹). Up-conversion luminescence spectra under the 980 nm laser diode excitation have been observed as a result of radiative transitions within the quantum energy level structures of Er³⁺ and Ho³⁺ ions. Optimization of rare earth ions content has been conducted, the highest emission intensity in the visible wavelength range has been observed in glass co-doped with molar concentration 0.5 Er2O3 / 0.5 Ho2O3.
DOI: 10.4302/plp.v10i1.802
ISSN: 2080-2242
Appears in Collections:Artykuły (WNŚiT)

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