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Crystals 2019, 9(3), 138; https://doi.org/10.3390/cryst9030138

Investigation of Y2.1Er0.9(ScxGa1−x)5O12 Matrix Components on the Spectral Properties around 3.0 μm by Micro-Pulling-Down Method

State Key Laboratory of Crystal Materials & Key Laboratory of Functional Crystal Materials and Device, Shandong University, Jinan 250100, China
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Received: 1 February 2019 / Revised: 28 February 2019 / Accepted: 4 March 2019 / Published: 7 March 2019
(This article belongs to the Section Crystalline Materials)
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Abstract

Single crystal fibers of 30% Er3+-doped compound of Y3(ScxGa1−x)5O12 have been grown by using the micro-pulling down (μ-PD) technique successfully. Our main purpose is to tune the fluorescence properties by adjusting the ratios of Sc3+ and Ga3+ ions inside the matrix crystals. The crystal structures of the series compounds were measured and analyzed through X-ray diffraction (XRD) measurements. The components and doping elements distributions were measured by the X-ray Fluorescence spectrometry and electron-probe microanalyzer. The absorption and mid-infrared fluorescence spectra, including the fluorescent lifetime of Er3+:4I13/2 and 4I11/2 levels were measured and compared systematically at room temperature. Spectral analysis indicated that the fluorescent lifetime of Er3+:4I13/2 tended to shorten and the emission spectra began to show a red shift when the proportion of YSG increased in the compound. Furthermore, the Raman spectra were measured to reveal the variations of lattice vibration and phonon energy. View Full-Text
Keywords: Y3(ScxGa1−x)5O12 crystal; mid-infrared fluorescence spectra; μ-PD Y3(ScxGa1−x)5O12 crystal; mid-infrared fluorescence spectra; μ-PD
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Che, Z.; Zhang, J.; Wu, B.; Hu, Q.; Mu, W.; Yin, Y.; Jia, Z. Investigation of Y2.1Er0.9(ScxGa1−x)5O12 Matrix Components on the Spectral Properties around 3.0 μm by Micro-Pulling-Down Method. Crystals 2019, 9, 138.

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