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Near-IR emission of Er3+ ions in CsCl-Ga-Ge-S glasses excited by visible light

Abstract : Fluorescence of 65GeS2-25Ga2S3-10CsCl glasses doped with Er has been investigated at room and liquid nitrogen temperatures. Strong emission lines at ∼1 and ∼1.5 μm are observed at room temperature in Er-doped samples when excited with ∼530 nm wavelength. At cryogenic temperature, this fluorescence is observed even at lower excitation wavelengths (∼400–450 nm). The other observed emission and absorption lines agree well with known energy level transitions of Er3+ ions incorporated in the glass matrix and temperature behavior of absorption spectra. The difference between room and liquid nitrogen temperature up-conversion emission is observed under femtosecond pulsed 800 nm laser excitation. © 2017
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01581246
Contributor : Laurent Jonchère <>
Submitted on : Monday, September 4, 2017 - 2:39:11 PM
Last modification on : Friday, July 10, 2020 - 4:24:41 PM

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J. Bunton, Laurent Calvez, V. Kadan, I. Blonskyi, O. Shpotyuk, et al.. Near-IR emission of Er3+ ions in CsCl-Ga-Ge-S glasses excited by visible light. Optical Materials, Elsevier, 2017, 72, pp.195--200. ⟨10.1016/j.optmat.2017.06.008⟩. ⟨hal-01581246⟩

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