Concentration quenching in an Er-doped phosphate glass for compact optical lasers and amplifiers

Pugliese, Diego; Boetti, Nadia Giovanna; Lousteau, Joris; Ceci-Ginistrelli, Edoardo; Bertone, Elisa; Geobaldo, Francesco; Milanese, Daniel

doi:10.1016/j.jallcom.2015.10.126

Cited by 117 publications

(45 citation statements)

References 30 publications

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“…Phosphate glasses are of great interest for the manufacturing of photonic devices because of their good chemical stability, easy processing, high rare-earth solubility and excellent optical characteristics [1,2,3,4,5,6]. Due to these properties, phosphate glasses containing rare-earth (RE) ions are very attractive for optical communications [7], laser sources, as well as optical fiber amplifiers [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Partial Crystallization on the Structural and Luminescence Properties of Er3+-Doped Phosphate Glasses

et al. 2017

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Er-doped phosphate glass ceramics were fabricated by melt-quenching technique followed by a heat treatment. The effect of the crystallization on the structural and luminescence properties of phosphate glasses containing Al2O3, TiO2, and ZnO was investigated. The morphological and structural properties of the glass ceramics were characterized by Field Emission-Scanning Electron Microscopy (FE-SEM), X-ray Diffraction (XRD), and micro-Raman spectroscopy. Additionally, the luminescence spectra and the lifetime values were measured in order to study the influence of the crystallization on the spectroscopic properties of the glasses. The volume ratio between the crystal and the glassy phases increased along with the duration of the heat treatment. The crystallization of the glass ceramics was confirmed by the presence of sharp peaks in the XRD patterns and different crystal phases were identified depending on the glass composition. Sr(PO3)2 crystals were found to precipitate in all the investigated glasses. As evidenced by the spectroscopic properties, the site of the Er3+ ions was not strongly affected by the heat treatment except for the fully crystallized glass ceramic which does not contain Al2O3, TiO2, and ZnO. An increase of the lifetime was also observed after the heat treatment of this glass. Therefore, we suspect that the Er3+ ions are incorporated in the precipitated crystals only in this glass ceramic.

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Section: Introductionmentioning

confidence: 99%

Effect of Partial Crystallization on the Structural and Luminescence Properties of Er3+-Doped Phosphate Glasses

et al. 2017

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“…13,14 Thus, phosphate glasses have been studied in various biomedical applications, especially for use in bone repair and reconstruction. [16][17][18][19][20] Besides, phosphate glasses allow high rare-earth (RE) ions solubility. [16][17][18][19][20] Besides, phosphate glasses allow high rare-earth (RE) ions solubility.…”

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confidence: 99%

“…Thus, concentration quenching phenomena do only occur at very high concentrations of RE. 14,20,21,28,29 However, to the best of our knowledge, only few studies focusing on glass compositions that combine both biocompatibility and suitable optical properties have been reported up to now. 9,[22][23][24][25][26] Therefore, phosphate glasses have recently become appealing for the engineering of photonic devices for optical communications, 27 laser sources, and optical amplifiers.…”

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confidence: 99%

“…15 Apart from their biological properties, phosphate glasses are also of great interest due to their easy processing, excellent thermo-mechanical and chemical properties, homogeneity, good thermal stability, and excellent optical properties, such as high transparency in the UV-Visible-Near-Infrared (UV-Vis-NIR) region. [16][17][18][19][20] Besides, phosphate glasses allow high rare-earth (RE) ions solubility. Thus, concentration quenching phenomena do only occur at very high concentrations of RE.…”

mentioning

confidence: 99%

“…9,[22][23][24][25][26] Therefore, phosphate glasses have recently become appealing for the engineering of photonic devices for optical communications, 27 laser sources, and optical amplifiers. 14,20,21,28,29 However, to the best of our knowledge, only few studies focusing on glass compositions that combine both biocompatibility and suitable optical properties have been reported up to now. 24,30 Recently, optical fibers have gained a lot of interest for use in biomedical applications such as phototherapy, optogenetics, biological sensing, and imaging.…”

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Design, processing, and characterization of an optical core‐bioactive clad phosphate fiber for biomedical applications

et al. 2019

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The aim of this study was to fabricate a bioactive optical fiber able to monitor “in situ” its reaction with the body through changes in its optical properties. Core and cladding preforms were prepared with the composition (97.25*(0.50P2O5‐0.40SrO‐0.10Na2O)‐2.5ZnO‐0.25Er2O3) and (98.25*(0.50P2O5‐0.40SrO‐0.10Na2O)‐1.75ZnO) (in mol%), respectively, and successfully drawn into a multimode core/clad optical fiber. Optical and near‐Infrared images assessed the proper light guiding properties of the fiber. The fibers favor the precipitation of a Ca‐P reactive layer at its surface concomitant with a reduction in the fiber diameter, when immersed in SBF, often assigned as a sign of bioactivity. It is clearly shown here that the bio‐response of the fiber upon immersion in SBF can be tracked from the decrease in the intensity of the Er3+ ions emission at 1.5 µm. This confirms that the newly developed optical fiber, which combines good optical properties with a suitable bioactive behavior, is a promising platform for the development of novel biomedical devices for biophotonic and photomedical applications. Finally, the successful splicing of the newly developed fiber with commercial optical fibers was an evidence of the possibility to integrate the newly developed phosphate fiber within existing components used in the field of biomedicine.

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Metal Nanowire‐Induced Enhancement of Surface Emission in Luminescent Glass

Wang,

Xiang,

Xie

et al. 2024

Advanced Optical Materials

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Luminescent glass, as an important component of photonic materials, is extensively utilized in applications such as lasers and optical fiber amplifiers, which demand high quantum efficiency. To further enhance the surface emission performance of luminescent glass, this study introduces a novel approach by employing custom‐made metal nanowires, applying them as coatings on the surface of Erbium‐doped glass, rather than embedding traditional metal nanoparticles. Utilizing experimental techniques and Finite‐Difference Time‐Domain (FDTD) simulations, it is demonstrated that the surface‐emission from Erbium‐doped glass coated with silver nanowires or copper nanowire‐graphene hybrids is significantly increased, showing an enhancement rate of up to 117.27% compared to intrinsic glass. Extended FDTD analysis reveals that variations in the size and density of the nanowires can optimize emission characteristics, thereby improving the emission performance of luminescent glass. The enhancement of the local electromagnetic field at the interface underscores the efficacy of metal nanowires in boosting photonic materials. This study not only highlights the practicality of metal nanowires in photonics but also introduces a rapid deployment pathway for customizing photonic interactions through nano‐engineering, potentially extendable to other photonic materials.

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Concentration quenching in an Er-doped phosphate glass for compact optical lasers and amplifiers

Cited by 117 publications

References 30 publications

Effect of Partial Crystallization on the Structural and Luminescence Properties of Er3+-Doped Phosphate Glasses

Effect of Partial Crystallization on the Structural and Luminescence Properties of Er3+-Doped Phosphate Glasses

Design, processing, and characterization of an optical core‐bioactive clad phosphate fiber for biomedical applications

Metal Nanowire‐Induced Enhancement of Surface Emission in Luminescent Glass

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