Origin of near to middle infrared luminescence and energy transfer process of Er3+/Yb3+co-doped fluorotellurite glasses under different excitations

Huang, Feifei; Liu, Xueqiang; Ma, Yaoyao; Kang, Shimin; Hu, Lili; Chen, Danping

doi:10.1038/srep08233

Cited by 66 publications

(44 citation statements)

References 45 publications

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“…However due to the low absorption cross-section, direct excitation of the RE ions’ 4f level results in low luminescence efficiency. The efficiency can be enhanced through sensitization processes, most commonly either through energy transfer or through charge transfer band910. Both processes are highly sensitive to the host matrix and therefore inspire researchers in developing suitable hosts for next generation optical sensing and display devices.…”

mentioning

confidence: 99%

Demonstration of Temperature Dependent Energy Migration in Dual-Mode YVO4: Ho3+/Yb3+ Nanocrystals for Low Temperature Thermometry

Mahata

Koppe

Kumar

et al. 2016

Sci Rep

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A dual mode rare-earth based vanadate material (YVO4: Ho3+/Yb3+), prepared through ethylene glycol assisted hydrothermal method, demonstrating both downconversion and upconversion, along with systematic investigation of the luminescence spectroscopy within 12–300 K is presented herein. The energy transfer processes have been explored via steady-state and time-resolved spectroscopic measurements and explained in terms of rate equation description and temporal evolution below room temperature. The maximum time for energy migration from host to rare earth (Ho3+) increases (0.157 μs to 0.514 μs) with the material’s temperature decreasing from 300 K to 12 K. The mechanism responsible for variation of the transients’ character is discussed through thermalization and non-radiative transitions in the system. More significantly, the temperature of the nanocrystals was determined using not only the thermally equilibrated radiative intra-4f transitions of Ho3+ but also the decay time and rise time of vanadate and Ho3+ energy levels. Our studies show that the material is highly suitable for temperature sensing below room temperature. The maximum relative sensor sensitivity using the rise time of Ho3+ energy level (5F4/5S2) is 1.35% K−1, which is the highest among the known sensitivities for luminescence based thermal probes.

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confidence: 99%

Demonstration of Temperature Dependent Energy Migration in Dual-Mode YVO4: Ho3+/Yb3+ Nanocrystals for Low Temperature Thermometry

Mahata

Koppe

Kumar

et al. 2016

Sci Rep

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“…Nowadays, research is mainly oriented in two directions: either broaden the gain spectrum or enhance the output power of Er 3+ doped fibers, to meet the insatiable demand for optical data transmission capacity and high power lasers. However, the gain width of conventional SiO 2 -based EDFAs is restricted to 40 nm4, limiting the wavelengths that can be simultaneously amplified5. In contrast, Er 3+ doped fluoride, tellurite and especially bismuth glasses exhibit gain spectra wider than 50, 70 and 80 nm, respectively678, thus are more promising candidates for broadband EDFAs.…”

mentioning

confidence: 99%

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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“…Samples Ω 2 ( × 10 −20 cm 2 ) Ω 4 ( × 10 −20 cm 2 ) Ω 6 ( × 10 −20 cm 2 ) δ ( × 10 −6 ) as-prepared 4 To investigate the emission characteristics of as-prepared glass and GCs, mid-infrared, upconversion, and near-infrared emission spectra of the samples under a 980 nm LD excitation are displayed in Fig. 6.…”

Section: Table 1 J-o Intensity Parameters Of Er 3+ In Different Samplesmentioning

confidence: 99%

“…Er 3+ is a suitable candidate active ion for achieving above applications due to the transition of 4 I 11/2 → 4 I 13/2 and it can be readily pumped by lowcost, high-efficiency and commercially available 808 or 980 nm LDs [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Enhanced emission and spectroscopic properties in oxyfluoride glass ceramics containing LaOF:Er^3+ nanocrystals

Kang

Song

Huang

et al. 2016

Opt. Mater. Express

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Transparent oxyfluoride glass ceramics (GCs) containing LaOF:Er 3+ nanocrystals were synthesized. X-ray diffraction (XRD), Raman spectra and transmission electron microscope (TEM) confirmed the formation of LaOF nanocrystals in glass matrix. Energy dispersive spectrometer (EDS) results and Judd-Ofelt (J-O) intensity parameters demonstrated the incorporation of Er 3+ into LaOF nanocrystals. Enhanced 2.7 μm emission was achieved upon excitation with a 980 nm laser diode (LD). Upconversion, near-infrared emissions, and energy transfer mechanisms were studied to elucidate 2.7 μm emission behaviors. The enhanced 2.7 μm emission is most likely ascribed to the incorporation of Er 3+ ions into the low phonon energy LaOF nanocrystals. The excellent optical properties of this GC material indicate that it is a promising candidate for mid-infrared fiber lasers. , "Origin of near to middle infrared luminescence and energy transfer process of Er 3+ /Yb 3+ co-doped fluorotellurite glasses under different excitations," Sci. Rep. 5, 8233 (2015). 5. T.

show abstract

Origin of near to middle infrared luminescence and energy transfer process of Er3+/Yb3+co-doped fluorotellurite glasses under different excitations

Cited by 66 publications

References 45 publications

Demonstration of Temperature Dependent Energy Migration in Dual-Mode YVO4: Ho3+/Yb3+ Nanocrystals for Low Temperature Thermometry

Demonstration of Temperature Dependent Energy Migration in Dual-Mode YVO4: Ho3+/Yb3+ Nanocrystals for Low Temperature Thermometry

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

Enhanced emission and spectroscopic properties in oxyfluoride glass ceramics containing LaOF:Er^3+ nanocrystals

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