Rong Chen, Ying Tian, Bingpeng Li, Xufeng Jing, Junjie Zhang, Shiqing Xu, Hellmut Eckert, Xianghua Zhang, "Thermal and luminescent properties of 2 μm emission in thulium-sensitized holmium-doped silicate-germanate glass," Photonics Res. 4, 214 (2016)

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- Photonics Research
- Vol. 4, Issue 6, 214 (2016)

Fig. 1. Deconvolution of Raman spectrum of SG glass using symmetric Gaussian functions.

Fig. 2. Absorption spectra of Tm 3 + single-doped and Tm 3 + / Ho 3 + co-doped silicate-germanate glasses in the range of 400–2200 nm.

Fig. 3. Fluorescence spectra of the Tm 3 + / Ho 3 + co-doped silicate-germanate glasses.

Fig. 4. Energy level diagrams and energy transfer sketch map of Tm 3 + and Ho 3 + ions.

Fig. 5. Emission cross sections of silicate-germanate glasses doped with 1.5 mol% Tm 2 O 3 and 1 mol% Ho 2 O 3 .

Fig. 6. (a) Fluorescence decay curve of Tm 3 + / Ho 3 + co-doped glass sample from Tm 3 + : F 4 3 → H 6 3 . Inset shows the decay curve of Tm 3 + singly doped glass sample. (b) Fluorescence decay curve of Tm 3 + / Ho 3 + co-doped glass samples from Ho 3 + : I 7 5 → I 8 5 .
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Table 1. Compositions of the Prepared Glasses
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Table 2. Physical and Thermal Properties of Silicate-Germanate Glasses
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Table 3. J-O intensity Parameters (Ω λ , λ = 2 , 4, 6) (× 10 − 20 cm 2 ) of Ho 3 + Ions in Various Glass Hosts
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Table 4. Spontaneous Transition Probability A rad , Branching Ratio β , and Radiative Lifetime τ rad for Different Excited Levels of Ho 3 + in Silicate-Germanate Glass
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Table 5. Peak Cross Section σ e peak , FWHM, Radiative Lifetime τ m , σ e peak × FWHM and σ e peak × τ m of I 7 5 → I 8 5 Transition of Ho 3 + in Different Glass Samples

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