Preparation and optical properties of silver sensitized 6Y–ZrO2: Er3+ translucent ceramics

Li, Minghui; Lei, Ruoshan; Wang, Huanping; Deng, Degang; Xu, Shiqing

doi:10.1016/j.ceramint.2022.01.220

Cited by 2 publications

(2 citation statements)

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“…According to previous studies, Er 3+ is a good candidate material for 2.7 µm MIR emission due to its radiative transition of 4 I 11/2 → 4 I 13/2 . Additionally, with a 980 nm business laser, Er 3+ tends to be easily pumped 6–8 . However, it is as yet a critical difficulty to get the productive 2.7 µm emission because of the self‐terminating issue; thus, the 4 I 13/2 level has a larger lifetime than the 4 I 11/2 level.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, with a 980 nm business laser, Er 3+ tends to be easily pumped. [6][7][8] However, it is as yet a critical difficulty to get the productive 2.7 µm emission because of the self-terminating issue; thus, the 4 I 13/2 level has a larger lifetime than the 4 I 11/2 level. Through energy transfer (ET), Pr 3+ , Ho 3+ , Yb 3+ , and Tm 3+ have been added as sensitizers to extinguish the Er 3+ : 4 I 13/2 level, which helps solve the issue of self-terminating.Given that the non-phonon-assisted ET process is a more effective way of quenching the electrons of 4 I 13/2 levels compared with the phonon-helped one.…”

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confidence: 99%

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Intense 2.7 µm emission of Er³⁺/Pr³⁺ doped Ga₅Ge₂₀Sb₁₀S₆₅ chalcogenide glass

Liu

Xia

et al. 2023

J Am Ceram Soc.

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There are numerous vital usages for mid-infrared (MIR) lasers in satellite communication, biomedicine, military, remote sensing, and environmental monitoring. In this work, a progression of Er 3+ ions doped, Er 3+ /Pr 3+ ions codoped Ga 5 Ge 20 Sb 10 S 65 glasses were prepared, and their physical performances and structural characteristics were examined. To understand the non-phononassisted energy transfer mechanism, we recorded the up-conversion and infrared fluorescence emission spectra by pumping with a commercial 980 nm LD. Then the 2.7 µm strong fluorescence signal intensity can be obtained when the doped concentration of Pr 3+ is proper. After the doping of Pr 3+ , fluorescence lifetime results revealed that the lifetimes of the Er 3+ : 4 I 13/2 level fell dramatically from 7.33 to 1.90 ms, which experienced a much more significant decrease in lifetimes than the Er 3+ : 4 I 11/2 level. The MIR fluorescence performances were assessed by the determined J-O parameters and relative emission cross sections. Additionally, the generally huge emission cross sections and the small pump energy show that it is possible to obtain population inversion with relatively small pump energy; thus the Er 3+ /Pr 3+ glasses have great potential to be 2.7 µm laser materials. K E Y W O R D S2.7 µm emission, chalcogenide glass, Er 3+ /Pr 3+ co-doped, Ga 5 Ge 20 Sb 10 S 65 glass INTRODUCTIONRecently, mid-infrared (MIR) lasers about 3 µm certainly stand out enough to be noticed owing to their various useful applications, for example, military countermeasures, remote detecting, environment contamination checking, satellite correspondence, and clinical-medical procedure. [1][2][3][4][5] According to previous studies, Er 3+ is a good candidate material for 2.7 µm MIR emission due to its radiative transition of 4 I 11/2 → 4 I 13/2 . Additionally, with a 980 nm business laser, Er 3+ tends to be easily pumped. [6][7][8] However, it is as yet a critical difficulty to get the productive 2.7 µm emission because of the self-terminating issue; thus, the 4 I 13/2 level has a larger lifetime than the 4 I 11/2 level. Through energy transfer (ET), Pr 3+ , Ho 3+ , Yb 3+ , and Tm 3+ have been added as sensitizers to extinguish the Er 3+ : 4 I 13/2 level, which helps solve the issue of self-terminating.Given that the non-phonon-assisted ET process is a more effective way of quenching the electrons of 4 I 13/2 levels compared with the phonon-helped one. The energy

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%