Influence of Al2O3 incorporation on the third-order nonlinear optical properties of Ag2O–TeO2 glasses

Kato, Keiichi; Hayakawa, Tomokatsu; Kasuya, Y.; Thomas, Philippe

doi:10.1016/j.jnoncrysol.2015.05.036

Cited by 18 publications

(11 citation statements)

References 20 publications

(28 reference statements)

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“…Tellurite silver (TeO 2 -Ag 2 O) glasses exhibit useful dielectric [1], electrical [2], structural [3], thermal and Raman [4] and non-linear optical properties [5,6]. Similarly, tellurite tungsten (TeO 2 -WO 3 ) glasses can provide unique electrical [7], linear optical [8], and luminescent properties for green laser [9] as well as efficient radiation shielding applications [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Theoretical studies of the electron paramagnetic resonance parameters and local structures for Cu2+ in (100-2x)TeO2-xAg2O-xWO3 glasses

Dong

Zhang

2021

Rev. Mex. Fís.

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The electron paramagnetic resonance (EPR) parameters and local structures for Cu2+ in (100-2x)TeO2-xAg2O-xWO3 (TAW) (7.5 ≤ x ≤ 30 mol %) glasses are quantitatively studied for distinct modifier concentrations x. The octahedral Cu2+ centers are subject to the medium tetragonal elongations of about 2% along the C4 axis due to the Jahn-Teller effect. By utilizing only three adjusted coefficients a, b and ω, the quantities (Dq, k, t and κ) can be suitably characterized by the Fourier type functions, which reasonably account for the experimental concentration dependences of the d-d transition bands and EPR parameters. The calculation results are discussed, and the mechanisms of the above concentration dependences of these quantities are illustrated by the modifications of the local structures and the electron cloud distribution around the Cu2+ dopant with the variations of the concentration x.

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Section: Introductionmentioning

confidence: 99%

Theoretical studies of the electron paramagnetic resonance parameters and local structures for Cu2+ in (100-2x)TeO2-xAg2O-xWO3 glasses

Dong

Zhang

2021

Rev. Mex. Fís.

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“…Recently, there are some available researches on alumina-based glasses and glass ceramics but little research attention has been paid to crystalline Ag [12][13][14][15] give the material a good advantage to be used as compatible dental llers to enhance the hardness and other mechanical properties of dental material [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Structure and Properties of Mixed Former Aluminum Borate Glasses Modified With Silver Oxide

El-Damrawi

Salah

2021

Preprint

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The current study focuses on glass preparation and characterization in the xAl2O3 (35-x) Ag2O.65B2O3 system (0≤x≤35 mol%), where Ag2O is replaced with Al2O3. To examine a wide range of both structure and morphology of the produced glasses, nuclear magnetic resonance (NMR) of 27Al nuclei, X-ray diffraction (XRD) spectroscopy, and transmission electron microscopy (TEM) are used. Changing the Al2O3 and Ag2O molar ratios reveals a substantial change in material structure. In Al2O3-rich glass, the well-formed AlO6, AlO5, and AlO4 structured groups are the well-formed units. In samples of (20 and 30 mol % Al2O3), tetrahedral AlO4 and traces from AlO6 units may be detected. At lower concentrations of Al2O3 (10 mol%), the dominant unit is only AlO4 groups containing non-bridging oxygen bonds (NBO). The XRD and EDP spectra confirm the amorphous nature of the glasses of Al2O3 ˂ 20 mol%. Glasses of higher Al2O3 concentrations contain crystalline Ag2Al2B2O7 which are formed due to the higher oxygen packaging of the mixed AlO5 and AlO4 compared with that of glasses containing only AlO4 species. The amount of higher coordinated Al species AlO5 and AlO6 are gradually increased in response to an increase in the ratios of Al2O3/Ag2O. The morphology of crystalline units is confirmed from TEM to differ from that of an amorphous composition. The conductivity decreases and the activation energy for ionic conduction increase with increasing Al2O3. The hardness number of the studied glasses is highly increased with increasing Al2O3 content. The increase of activation energy and the hardness number of the glasses led to an increase in the durability of the investigated glasses.

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“…Rare-earth (RE) ion-doped tellurite glasses have attractive optical properties, including high refractive index (>2.0), wide optical window from near-ultraviolet (NUV) to infrared (IR) region and a variety of photoluminescence (PL), as well as low melting point, good chemical stability and high solubility of RE ions. [1][2][3][4][5][6][7][8] Low phonon energy of tellurite glasses (~700 cm -1 ) is beneficial for obtaining high PL intensity of RE ions doped in a tellurite matrix. However, the residual hydroxyl group (-OH) in the glasses can somewhat influence the optical properties and limit transmission in a longer-wavelength region, because OH groups strongly absorb IR light at ~ 3,000 cm -1 .…”

Section: Introductionmentioning

confidence: 99%

Optical properties of Nd3+-doped TeO2-TiO2-ZnO glasses with lower hydroxyl content

Clermont-Gallerande

Saito

Hayakawa

et al. 2020

Journal of Non-Crystalline Solids

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This paper describes Nd 3+ -ions doped multicomponent tellurite glasses TeO2-TiO2-ZnO (TTZ) applicable to advanced optical devices, which were characterized by UV-Vis-NIR absorption, Raman, and photoluminescence (PL) techniques. Not only did we perform experimental characterizations but also theoretically predicted the PL properties of Nd 3+ -doped TTZ glasses by using the Judd-Ofelt theory. The influence of the residual hydroxyl (OH) groups and types of crucible used in the melt preparation on the structures and optical properties of TTZ glasses was investigated. We found that the use of a Pt crucible increased the network-connecting structures of trigonal bipyramidal TeO4 compared to the case of a Al2O3 crucible. Moreover, reducing the OH groups in TTZ glasses improved the optical properties of Nd 3+ -doped TTZ glass, and a higher spectral figure of merit of 8.71 × 10 −24 s cm 2 for Nd 3+ : 4 F3/2→ 4 I11/2 emission at 1,075 nm could be achieved, indicating that Nd 3+doped TTZ glass with lower hydroxyl content is promising for laser or active optical applications.

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Influence of Al2O3 incorporation on the third-order nonlinear optical properties of Ag2O–TeO2 glasses

Cited by 18 publications

References 20 publications

Theoretical studies of the electron paramagnetic resonance parameters and local structures for Cu2+ in (100-2x)TeO2-xAg2O-xWO3 glasses

Theoretical studies of the electron paramagnetic resonance parameters and local structures for Cu2+ in (100-2x)TeO2-xAg2O-xWO3 glasses

Structure and Properties of Mixed Former Aluminum Borate Glasses Modified With Silver Oxide

Optical properties of Nd3+-doped TeO2-TiO2-ZnO glasses with lower hydroxyl content

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