Intense broadband 3.1 μm emission in Er3+-doped fluoroaluminate-tellurite glass for mid-infrared laser application

Zhang, Chuncheng; Zhang, Chaomin; Yun, Chao; Lai, Shengying

doi:10.1016/j.ceramint.2022.06.265

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…9, the fluorescence lifetime of the sample TEBAg0.6 at 3.1 and 1.5 μm are 0.53 and 0.60 ms, respectively, which is an improvement compared with previous reports. 43 The longer fluorescence lifetime helps to obtain information such as energy level structure and excited state relaxations time, which also has an important role in the applications of mid-infrared fibers and lasers.…”

Section: Fluorescence Decay Mechanismmentioning

confidence: 99%

Ag nanoparticles enhanced 3.1 μm mid-infrared emission of Er3+/Bi+ co-doped oxyfluoride tellurite glasses

Wu,

Zhang

2024

Opt. Eng.

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The Er 3þ ∕Bi þ ∕Ag nanoparticles (NPs) triple-doped oxyfluoride tellurite glasses were prepared by melt-quenching method, showing an intense 3.1 μm mid-infrared fluorescence emission under 980 nm laser diode pumping. The as-prepared tellurite glass samples exhibit good thermal stability and resistance to crystallization based on X-ray diffraction and differential scanning calorimetry measurements. After an introduction of AgNPs into the tellurite glass matrix, a broadband fluorescence emission at 3.1 μm is detected, in which the full width at half maximum (FWHM) is 181 nm. Moreover, the 3.1 μm fluorescence intensity in this Er 3þ ∕Bi þ ∕AgNPs triple-doped glass is enhanced by 42%, compared with a pristine sample, and the corresponding fluorescence lifetime is obtained with a value of 0.53 ms. It is reasonable that there is strong absorption of the incident photons due to the vibration frequency matching between AgNPs and incident photons, it can promote the localized surface plasmon resonance and energy transfer between AgNPs and Er 3þ ions, and in turn lead to an enhancement of fluorescence intensity. The above results demonstrate that the as-prepared Er 3þ ∕Bi þ ∕AgNPs triple-doped oxyfluoride tellurite glasses possess excellent fluorescence properties and may be a good carrier for mid-infrared fibers and laser gain materials.

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Section: Fluorescence Decay Mechanismmentioning

confidence: 99%

Ag nanoparticles enhanced 3.1 μm mid-infrared emission of Er3+/Bi+ co-doped oxyfluoride tellurite glasses

Wu,

Zhang

2024

Opt. Eng.

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“…In recent years, fiber lasers in the mid-infrared band have become a hot topic due to their potential applications in remote sensing monitoring, military, and other fields [1][2][3][4][5][6][7][8][9]. Usually, ~3 µm emission originates from the radiative transition of Ho 3+ : 5 I 6 → 5 I 7 , Er 3+ : 4 I 11/2 → 4 I 13/2 , and Dy 3+ : 6 H 13/2 → 6 H 15/2 [2].…”

Section: Introductionmentioning

confidence: 99%

Broadband 2.85 μm Luminescence Properties of Er3+/Dy3+ Co-Doped Fluorotellurite Glass

Bai,

Zhou,

Cao

et al. 2023

Photonics

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TeO2-BaF2-Er2O3-Dy2O3 laser glasses were prepared using the melt-quenching method. The bound water that can capture the excited state energy was reduced by physical and chemical methods. We did not observe a significant Er3+ emission peak at 2.7 μm in fluorescence spectra, which may be due to the efficient energy transfer process (ET2). Meanwhile, we found a broadband gain span of approximately 400 nm in fluorescence spectra at the 2.85 μm band, attributed to the ‘vector summation’ of the energy level radiation transition and the change of the glass network. Subsequently, we explored the structural properties of the glass. The results indicated that the Gaussian peak located at 250 cm−1 drifts toward 370 cm−1, which may be caused by the fracture or recombination of Te-O-Te and a decrease in the bridge oxygen content with the increasing concentration of Er2O3. The topology cage structure around the luminescence center of rare earth ions is changed and the stability of the optically active center is enhanced, finally contributing to the enhancement of luminescence. Meanwhile, the maximum σemi and gain coefficient of Dy3+ reach up to 7.22 × 10−21 cm2 and 7.37 cm−1, respectively. The comprehensive results show that the fluorotellurite glass designed in this study is expected to be a gain medium for mid-infrared lasers in remote sensing monitoring, military, and other fields.

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Deactivation effects of Tb3+ on Ho3+ emission in fluoroindate glasses for 3.9 μm laser applications

Zhang

Cheng

Wang

et al. 2023

Ceramics International

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Intense broadband 3.1 μm emission in Er3+-doped fluoroaluminate-tellurite glass for mid-infrared laser application

Cited by 8 publications

References 19 publications

Ag nanoparticles enhanced 3.1 μm mid-infrared emission of Er3+/Bi+ co-doped oxyfluoride tellurite glasses

Ag nanoparticles enhanced 3.1 μm mid-infrared emission of Er3+/Bi+ co-doped oxyfluoride tellurite glasses

Broadband 2.85 μm Luminescence Properties of Er3+/Dy3+ Co-Doped Fluorotellurite Glass

Deactivation effects of Tb3+ on Ho3+ emission in fluoroindate glasses for 3.9 μm laser applications

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