Nano-silver enhanced luminescence of Er<sup>3+</sup> ions embedded in tellurite glass, vitro-ceramic and ceramic: impact of heat treatment

Fares, Hssen; Stambouli, Wissal; Elhouichet, Habib; Gelloz, Bernard; Férid, Mokhtar

doi:10.1039/c6ra02095j

Cited by 32 publications

(2 citation statements)

References 47 publications

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“…During controlled crystallization of the glass, Er 3+ ions preferentially enter into the low phonon energy NaYF 4 nanocrystals with minimized nonradiative relaxation and enhanced luminescence. Moreover, confirmed by the calculated Judd–Ofelt parameters (Table S1, Supporting Information), it suggests an increase in the site symmetry of the of Er 3+ ions and extends the fluorescence lifetime . It is worth noting that the Er 3+ ions in the NGCs are divided into two parts.…”

supporting

confidence: 54%

Microlaser Output from Rare‐Earth Ion‐Doped Nanocrystal‐in‐Glass Microcavities

Ouyang

Kang

Zhang

et al. 2019

Advanced Optical Materials

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of photons near a circular ring boundary via successive total internal reflections, whispering gallery mode microcavities exhibit ultrahigh Q factors and extremely small mode volumes, leading to greatly enhanced light-matter interactions. [2][3][4] These superior characteristics make WGM microcavities highly attractive for on-chip optical communications, including microlaser sources, [5,6] active filters, [7] optical sensors, [8,9] and others. Using WGM microcavities as resonant cavities for laser oscillations, the light energy density in microcavities is quite high, which results in the reduction of laser thresholds down to the microwatt range. [10][11][12] With an extremely high quality factor and facile processability, inorganic glasses are the most reliable materials for building WGM lasers. In the 1990s, near-infrared lasers were demonstrated in Nd 3+ -doped glass microspheres. [12] Since then, using amorphous glass microcavities to generate lasers with RE-ions has been well established. [11,[13][14][15] Furthermore, various kinds of lasers, such as Raman lasers [16] and second harmonics, [17,18] have been developed by applying glass WGM resonators. However, unlike crystals, glasses are amorphous, and they are characterized by relatively large phonon energy and broad phonon energy distribution, which are detrimental to the luminescence of rare earth (RE) ions that serve as the emission centers. Combining the low phonon energy of the crystalline phase with the excellent mechanical and chemical stability of the oxide matrix, the oxyfluoride nanocrystallized glass ceramic (NGC) has been regarded as an ideal host material for RE ions. [19] However, WGM laser output from NGC microcavities has not yet been reported. The main reason is that the absorption and scattering loss increase rapidly with the growth of nanocrystals in the glass matrix, resulting in the reduction of cavity Q factors that hinders low threshold laser output. To address these obstacles, we carefully designed an excellent oxyfluoride NGC material, where NaYF 4 nanocrystals are crystallized within the borosilicate glass matrix through a controlled heat-treatment process.Since the refractive index of the nanocrystal matches well with the glass matrix, and the sizes of the precipitated nanocrystals are small and uniform, the rise in absorption and scattering losses, which are very harmful to Q factors, are prevented. As a result, Er 3+ -doped NGC microsphere cavities with Q factors as high as 10 6 are obtained, which enables single mode WGM Nanocrystallized glass ceramics (NGCs) are important optical materials, but few studies have focused on their laser actions. Here, by precipitation of NaYF 4 nanocrystals enriched with Er 3+ ions in an oxide glass matrix, great enhancement of the luminescence properties for the NGC microspheres is realized. By carefully matching the refractive index of the glass matrix with that of the NaYF 4 nanocrystals and controlling the size and distribution of the precipitated nanocrystals, the absorption and Rayleigh scat...

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confidence: 54%

Microlaser Output from Rare‐Earth Ion‐Doped Nanocrystal‐in‐Glass Microcavities

Ouyang

Kang

Zhang

et al. 2019

Advanced Optical Materials

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“…2 Numerous applications of active glasses have been proposed for new technologies in optics and photonics such as ber optics, ber ampliers, solid-state lighting, solar cells technology, light emitting diodes (LEDs) and other photonic devices. [3][4][5][6][7] Among these numerous applications, signicant attention has been drawn recently on the microfabrication of three-dimensional (3D) waveguides for femtosecond laser direct writing (FLDW). [8][9][10] FLDW has been explored as an attractive processing tool for spatially controlled structural modication in transparent materials.…”

Section: Introductionmentioning

confidence: 99%

Highly luminescent silver nanocluster-doped fluorophosphate glasses for microfabrication of 3D waveguides

Fares

Santos

et al. 2017

RSC Adv.

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Local Electric Field Enhancement in the Vicinity of Ag Nanoparticles and Their Agglomerates in Zinc-Phosphate and Silicate Glass

Srabionyan,

Vetchinnikov,

Rubanik

et al. 2024

Glass Ceram

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Nano-silver enhanced luminescence of Er³⁺ ions embedded in tellurite glass, vitro-ceramic and ceramic: impact of heat treatment

Abstract: Tellurite glasses co-activated with erbium ions and silver nanoparticles (Ag NPs) are prepared using melt quenching technique.

Cited by 32 publications

References 47 publications

Microlaser Output from Rare‐Earth Ion‐Doped Nanocrystal‐in‐Glass Microcavities

Microlaser Output from Rare‐Earth Ion‐Doped Nanocrystal‐in‐Glass Microcavities

Highly luminescent silver nanocluster-doped fluorophosphate glasses for microfabrication of 3D waveguides

Local Electric Field Enhancement in the Vicinity of Ag Nanoparticles and Their Agglomerates in Zinc-Phosphate and Silicate Glass

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Nano-silver enhanced luminescence of Er3+ ions embedded in tellurite glass, vitro-ceramic and ceramic: impact of heat treatment

Abstract: Tellurite glasses co-activated with erbium ions and silver nanoparticles (Ag NPs) are prepared using melt quenching technique.

Cited by 32 publications

References 47 publications

Microlaser Output from Rare‐Earth Ion‐Doped Nanocrystal‐in‐Glass Microcavities

Microlaser Output from Rare‐Earth Ion‐Doped Nanocrystal‐in‐Glass Microcavities

Highly luminescent silver nanocluster-doped fluorophosphate glasses for microfabrication of 3D waveguides

Local Electric Field Enhancement in the Vicinity of Ag Nanoparticles and Their Agglomerates in Zinc-Phosphate and Silicate Glass

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Nano-silver enhanced luminescence of Er³⁺ ions embedded in tellurite glass, vitro-ceramic and ceramic: impact of heat treatment