Broadband ∼3 μm mid-infrared emission in Dy3+/Yb3+ co-doped germanate glasses

Shen, Lingling; Wang, Ning; Dou, Aoju; Cai, Yangjian; Tian, Ying; Huang, Feifei; Xu, Shiqing; Zhang, Junjie

doi:10.1016/j.optmat.2017.10.034

Cited by 23 publications

(4 citation statements)

References 40 publications

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“…Confirmation that this path can be quite efficient in low phonon energy fluoride crystalline hosts is evidenced by the experimental observation of a two order of magnitude reduction in Yb

^{2} F_{5 / 2}

lifetime on the introduction of Dy in a 10:1 Yb/Dy ratio . A similar doping ratio in germanate glass resulted in increased MIR fluorescence intensity . A value for the microscopic energy transfer constant of

7.36 \times 10^{- 39}

cm 6 s −1 was obtained in tellurite glass and a transfer efficiency as high as 80% is calculated based on the reduction in Yb lifetime…”

Section: Spectroscopymentioning

confidence: 75%

“…Lu 2 O 3 ), potentially leading to even more favourable properties. Co‐doping (with Yb 3 + , Er 3 + and Tm 3 + ) is also an area to have received research attention, highlighting routes to enhanced 3 µm emission efficiency, although these ideas have unfortunately yet to translate into laser experiments. This is therefore an area for further study, in addition to consideration of other co‐doping schemes to enhance the longer wavelength Dy 3 + 4 µm transition.…”

Section: Discussionmentioning

confidence: 99%

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Dysprosium Mid‐Infrared Lasers: Current Status and Future Prospects

Woodward

Majewski

Jackson

2020

Laser & Photonics Reviews

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With growing interest in the mid‐infrared spectral region, dysprosium has recently been revisited for efficient high‐performance infrared source development. Despite historically receiving less attention than other rare earth ions, in recent years lasers utilizing the dysprosium ion as the laser material have set record mid‐infrared performance, including tunability from 2.8 to 3:4 µm (in addition to 4:3 µm lasing), continuous wave powers exceeding 10 W, greater than 73% slope efficiencies, and even ultrafast pulsed operation. Herein, the unique energy level structure and spectroscopy of the dysprosium ion are examined and the major developments that have led to this resurgence of interest and subsequent record mid‐infrared laser performance are surveyed. Also mid‐infrared applications of emerging dysprosium lasers are highlighted, in addition to surveying the many opportunities that lie ahead.

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“…Confirmation that this path can be quite efficient in low phonon energy fluoride crystalline hosts is evidenced by the experimental observation of a two order of magnitude reduction in Yb

^{2} F_{5 / 2}

7.36 \times 10^{- 39}

cm 6 s −1 was obtained in tellurite glass and a transfer efficiency as high as 80% is calculated based on the reduction in Yb lifetime…”

Section: Spectroscopymentioning

confidence: 75%

Section: Discussionmentioning

confidence: 99%

Dysprosium Mid‐Infrared Lasers: Current Status and Future Prospects

Woodward

Majewski

Jackson

2020

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

“…10 that the up-conversion luminescence intensity decreases with an increase in Dy 2 O 3 contents from 0.6 up to 1.5 mol%. The decrease in the intensity was ascribed to the quenching effect arising from cross-relaxation energy transfer [ 70 ]. Nonetheless, the up-conversion intensity increased drastically with the inclusion of CuO nanoparticles in the glass constituents.…”

Section: Resultsmentioning

confidence: 99%

Intense up-conversion luminescence from Dy3+-doped multi-component telluroborate glass matrix: Role of CuO nanoparticles embedment

Abdullahi

Hashim

Sayyed

et al. 2023

Heliyon

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“…Relatively high A rad provides a greater possibility for obtaining efficient fluorescence emission. Note, the A rad of Dy 3+ : 6 H 13/2 → 6 H 15/2 in TB3 glass is 98.90 s −1 larger than ZBYLY (45.92 s −1 ) [28] and germanate glass (63.94 s −1 ) [29]. The larger the probability of radiation transition, the higher the possibility of achieving efficient fluorescence emission.…”

Section: Absorption Spectra and Refractive Indexmentioning

confidence: 91%

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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Broadband ∼3 μm mid-infrared emission in Dy3+/Yb3+ co-doped germanate glasses

Cited by 23 publications

References 40 publications

Dysprosium Mid‐Infrared Lasers: Current Status and Future Prospects

Dysprosium Mid‐Infrared Lasers: Current Status and Future Prospects

Intense up-conversion luminescence from Dy3+-doped multi-component telluroborate glass matrix: Role of CuO nanoparticles embedment

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

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