Enhanced near/mid-infrared emission bands centered at ∼1.54 and ∼2.73 µm of Er3+-doped in transparent silicate glass-ceramics via Mn2+-Yb3+ dimer

The effect of MnCO3 on the gain coefficient for the 4I13/2 → 4I15/2 transition of Er3+ ions and near-infrared emission bandwidth flatness of Er3+/Tm3+/Yb3+ co-doped barium zinc silicate glasses

“…The obtained results displayed in curve (c) of Fig. 2(B) indicate that we can also observe all nine optical transmittance bands corresponding to 6 A 1g → 4 T 1g of Mn 2+ ions, 2 F 7/2 → 2 F 5/2 of Yb 3+ ions, 4,11,13,14,17 and the 4 I 15/2 → 4 G 11/2 , - 4 F 7/2 , - 2 H 11/2 , - 4 S 3/2 , - 4 F 9/2 , - 4 I 11/2 , - 4 I 13/2 transitions of Er 3+ ions, 4,30,31 similar to the analysis above. Interestingly, the analyzed results reveal that the transmittance spectrum of the SZB-0.5Er1Tm2Yb2Mn glass samples containing Mn 2+ components in the wavelength region of ∼380–900 nm was decreased whereas the optical transmittance spectrum in the wavelength region of ∼900–2000 nm was increased compared to SZB-0.5Er1Tm2Yb glass samples without Mn 2+ components.…”

“…19,23 The obtained results indicated that the NIR bandwidth flatness of Tm 3+ -doped, Ho 3+ -doped, Tm 3+ /Ho 3+ -co-doped, and Ho 3+ /Tm 3+ /Yb 3+ co-doped glasses was significantly improved by the presence of Mn 2+ ions and an Mn 2+ –Yb 3+ dimer in the host glasses. 13,14,23…”

Influence of Cr3+ on yellowish‐green UC emission and energy transfer of Er3+/Cr3+/Yb3+ tri‐doped zinc silicate glasses

“…Here, A 11 and A 12 are constants; τ 11 and τ 12 are rapid and slow lifetimes for exponential components, respectively 26,34,45 . With these parameters, the average decay lifetimes τ Cr‐543nm of SZNL‐0.1Er0Cr2Yb, SZNL‐0.1Er1Cr2Yb, SZNL‐0.1Er2Cr2Yb, SZNL‐0.1Er3Cr2Yb, SZNL‐0.1Er4Cr2Yb, and SZNL‐0.1Er5Cr2Yb glass samples come out to be approximately 147.4, 144.3, 138.6, 132.8, 130.1 and 128.2 µs, respectively.…”

“…Figure 11 shows the measurement results of the decay lifetimes τ Er‐660nm at 660 nm in SZNL‐mEr2Cr2Yb ( m = 0.1, 0.15, 0.2, 0.25 and 0.3 mol.%) glass samples, under the excitation of the 980nm LD, 2.0W. By using formula (), 34,44,45 the average decay lifetimes τ Er‐660nm of SZNL‐0.1Er2Cr2Yb, SZNL‐0.15Er2Cr2Yb, SZNL‐0.2Er2Cr2Yb, SZNL‐0.25Er2Cr2Yb and SZNL‐0.3Er2Cr2Yb glass samples were calculated approximately 99.5, 91.8, 86.5, 81.6 and 78.2 µs, respectively. With increasing molar concentration of Er 3+ from 0.1 up to 0.3 mol.…”

“…Figure 10 shows the decay lifetimes of Cr 3+ at 543 nm (τ Cr‐543nm ) of SZNL‐0.1Er0Cr2Yb, SZNL‐0.1Er1Cr2Yb, SZNL‐0.1Er2Cr2Yb, SZNL‐0.1Er3Cr2Yb, SZNL‐0.1Er4Cr2Yb, and SZNL‐0.1Er5Cr2Yb glass samples under the excitation of the 980nm LD. The average decay lifetimes τ Cr‐543nm were calculated by the formula 26,34,44,45 : …”