Intense near-infrared and midinfrared luminescence from the Dy3+-doped GeSe2–Ga2Se3–MI (M=K, Cs, Ag) chalcohalide glasses at 1.32, 1.73, and 2.67 μm

Ren, Jing; Wágner, T.; Bartoš, Miroslav; Frumar, M.; Oswald, J.; Kincl, M.; Frumarová, Božena; Chen, Guorong

doi:10.1063/1.3531555

Cited by 32 publications

(13 citation statements)

References 44 publications

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“…According to the theory, three JO intensity parameters (Ω t , t = 2, 4, 6), which depend on the local chemical environments, determine the radiative transition rate of RE ions. Of the three parameters, Ω 2 is the most sensitive to local structure, and previous studies have suggested that it increases with the degree of asymmetry around RE ions3334. The other two parameters, Ω 4 and Ω 6 are not so much susceptible to the environmental changes as Ω 2 .…”

Section: Discussionmentioning

confidence: 92%

Ce3+/Yb3+/Er3+ triply doped bismuth borosilicate glass: a potential fiber material for broadband near-infrared fiber amplifiers

Chu

Ren

Zhang

et al. 2016

Sci Rep

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Erbium doped bismuth borosilicate (BBS) glasses, possessing the broadest 1.55 μm near infrared (NIR) emission band among oxide glasses, stand out as excellent fiber material for optical fiber amplifiers. In this work, we demonstrate that both broadened and enhanced NIR emission of Er3+ can be obtained by sensibly combining the effects such as mixed glass former effect, phonon-assisted energy transfer (PAET) and de-excitation effect induced by codopant. Specially, by codoping CeO2 in a controlled manner, it leads to not only much improved optical quality of the glasses, enhanced NIR emission, but also significantly suppressed energy transfer up-conversion (ETU) luminescence which is detrimental to the NIR emission. Cerium incorporated in the glasses exists overwhelmingly as the trivalent oxidation state Ce3+ and its effects on the luminescence properties of Er3+ are discussed. Judd-Ofelt analysis is used to evaluate gain amplification of the glasses. The result indicates that Ce3+/Yb3+/Er3+ triply doped BBS glasses are promising candidate for erbium doped fiber amplifiers. The strategy described here can be readily extended to other rare-earth ions (REs) to improve the performance of REs doped fiber lasers and amplifiers.

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Section: Discussionmentioning

confidence: 92%

Ce3+/Yb3+/Er3+ triply doped bismuth borosilicate glass: a potential fiber material for broadband near-infrared fiber amplifiers

Chu

Ren

Zhang

et al. 2016

Sci Rep

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“…Up to now, numerous RE ions in suitable host have realized the MIR emission, such as Er 3+ , Ho 3+ and Dy 3+ 222324. Among them, Er 3+ emission at 2.7 μm attributed to the 2 I 11/2 → 4 I 13/2 transition, plays an important role in the investigations and has been achieved in many kinds of glasses2526, glass ceramics2728 and single crystals29.…”

mentioning

confidence: 99%

Controllable Phase Transformation and Mid-infrared Emission from Er3+-Doped Hexagonal-/Cubic-NaYF4 Nanocrystals

Yang

Chen

et al. 2016

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The morphology of hexagonal phase NaYF4:Er3+ nanorods synthesized by hydrothermal method changed greatly after a continuing calcination, along with a phase transformation to cubic phase. Photoluminescence (PL) spectra indicated that mid-infrared (MIR) emission was obtained in both hexagonal and cubic phase NaYF4:Er3+ nanocrystals for the first time. And the MIR emission of NaYF4:Er3+ nanocrystals enhanced remarkably at higher calcination temperature. To prevent uncontrollable morphology from phase transformation, the cubic phase NaYF4:Er3+ nanospheres with an average size of ~100 nm were prepared via a co-precipitation method directly. In contrast, the results showed better morphology and size of cubic phase NaYF4:Er3+ nanocrystals have realized when calcined at different temperatures. And PL spectra demonstrated a more intense MIR emission in the cubic phase NaYF4:Er3+ nanocrystals with an increasing temperature. Besides, the MIR emission peak of Er3+ ions had an obvious splitting in cubic phase NaYF4. Therefore, cubic phase NaYF4:Er3+ nanospheres with more excellent MIR luminescent properties seems to provide a new material for nanocrystal-glass composites, which is expected to open a broad new field for the realization of MIR lasers gain medium.

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“…It is known that the 1.3‐μm emission is due to “hypersensitive” transition which is extremely sensitive to the local chemical environment of rare earth ions. On the other hand, the transition for 1.14 μm emission is much less susceptible to the local environment . The line broadening is connected with an increase in random crystal‐strain inhomogeneities which depend on the disorder in the host materials .…”

Section: Solid State Electric Field‐assisted Silver Diffusionmentioning

confidence: 99%

Refractive Index Profile and Luminescence Properties of Dy³⁺‐doped Ge₂₀Ga₅Sb₁₀S₆₅ Glass after Electric Field‐Assisted Silver Diffusion

Ren

Stepanov

Wágner

et al. 2011

Journal of the American Ceramic Society

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Solid state electric field‐assisted diffusion has been widely applied to oxide glasses to make buried waveguides but rarely employed in chalcogenide glasses. We have previously fabricated Ag‐doped Ge20Ga5Sb10S65 glasses by electric field‐assisted diffusion and studied the Ag+ concentration profiles. However, the optical properties after the silver diffusion were left unexplored. In this article, we use the “scratch method” by atomic force microscopy to investigate the refractive index profile of Dy3+‐doped Ge20Ga5Sb10S65 glass after the silver diffusion. The refractive index profile obtained after the diffusion is very symmetric. An enhanced Dy3+ 1.34 μm emission has been found only in the presence of silver. The product of measured lifetime and emission cross‐section (τmeaσe) is increased by 12% after the diffusion.

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Intense near-infrared and midinfrared luminescence from the Dy3+-doped GeSe2–Ga2Se3–MI (M=K, Cs, Ag) chalcohalide glasses at 1.32, 1.73, and 2.67 μm

Cited by 32 publications

References 44 publications

Ce3+/Yb3+/Er3+ triply doped bismuth borosilicate glass: a potential fiber material for broadband near-infrared fiber amplifiers

Ce3+/Yb3+/Er3+ triply doped bismuth borosilicate glass: a potential fiber material for broadband near-infrared fiber amplifiers

Controllable Phase Transformation and Mid-infrared Emission from Er3+-Doped Hexagonal-/Cubic-NaYF4 Nanocrystals

Refractive Index Profile and Luminescence Properties of Dy³⁺‐doped Ge₂₀Ga₅Sb₁₀S₆₅ Glass after Electric Field‐Assisted Silver Diffusion

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Intense near-infrared and midinfrared luminescence from the Dy3+-doped GeSe2–Ga2Se3–MI (M=K, Cs, Ag) chalcohalide glasses at 1.32, 1.73, and 2.67 μm

Cited by 32 publications

References 44 publications

Ce3+/Yb3+/Er3+ triply doped bismuth borosilicate glass: a potential fiber material for broadband near-infrared fiber amplifiers

Ce3+/Yb3+/Er3+ triply doped bismuth borosilicate glass: a potential fiber material for broadband near-infrared fiber amplifiers

Controllable Phase Transformation and Mid-infrared Emission from Er3+-Doped Hexagonal-/Cubic-NaYF4 Nanocrystals

Refractive Index Profile and Luminescence Properties of Dy3+‐doped Ge20Ga5Sb10S65 Glass after Electric Field‐Assisted Silver Diffusion

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Refractive Index Profile and Luminescence Properties of Dy³⁺‐doped Ge₂₀Ga₅Sb₁₀S₆₅ Glass after Electric Field‐Assisted Silver Diffusion