The optical properties of tellurite glasses

El‐Mallawany, R.

doi:10.1063/1.351649

Cited by 170 publications

(53 citation statements)

References 14 publications

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“…This is similar to the observations reported by Prod'homme 16 for oxide glasses. Tellurite glasses have structural units of TeO 4 and TeO 3 that are connected weakly with each other, and thus the intermediate structure varies easily with increasing temperature, which can change the electronic polarizability of the glasses. 2 Another interesting observation is that exhibits a stronger temperature dependence for the glasses containing TiO 2 , indicating that this metal produces significant changes in the glass structure.…”

Section: -mentioning

confidence: 99%

“…In the TL experiment, the change in intensity of the probe beam is proportional to the TL-induced phase shift, which is given by 11,4 =…”

mentioning

confidence: 99%

“…These properties suggest that those materials are suitable for applications involving third-harmonic generation or optical Kerr effects. [1][2][3][4][5] Tellurite glasses are also strong candidates for superhigh-speed optical switches or shutters, as well as promising materials for fiber-optic applications. 6 An interesting aspect of these glasses is their thermodynamic and fragile behaviors close to the glass transition temperature, 1-3 which are not yet well understood, despite their direct relationship to the structural changes.…”

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confidence: 99%

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Inversion in the temperature coefficient of the optical path length close to the glass transition temperature in tellurite glasses

Lima

Andrade

Falcão

et al. 2009

Applied Physics Letters

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In this study, thermal lens spectrometry was applied to determine the thermo-optical properties of fragile tellurite glasses as a function of temperature, close to the glass transition region. The results showed an inversion from positive to negative values in the temperature coefficient of the optical path length occurring after the glass transition temperature, which is the region where structural changes from the TeO4 trigonal bipyramidal unit to a TeO3 trigonal pyramid containing nonbridging oxygen take place. In addition, the thermal diffusivity values as a function of temperature exhibited behaviors that were related to thermodynamic and kinetic structural changes in the glass.

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Section: -mentioning

confidence: 99%

“…In the TL experiment, the change in intensity of the probe beam is proportional to the TL-induced phase shift, which is given by 11,4 =…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Inversion in the temperature coefficient of the optical path length close to the glass transition temperature in tellurite glasses

Lima

Andrade

Falcão

et al. 2009

Applied Physics Letters

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“…Therefore, a large number of researchers have carried out investigations to ascertain the relation between refractive index and glass composition [6].…”

Section: Introductionmentioning

confidence: 99%

Optical properties of samarium doped zinc–phosphate glasses

Eraiah

Bhat

2007

Journal of Physics and Chemistry of Solids

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Samarium doped zinc-phosphate glasses having composition Sm 2 O 3 (x) ZnO (60Àx) P 2 O 5 (40) (where x ¼ 0.1-0.5 mol%) were prepared by melt quenching method. The density of these glasses was measured by Archimedes method; the corresponding molar volumes have also been calculated. The values of density range from 3.34 to 3.87 gm/cm 3 and those of molar volume range from 27.62 to 31.80 cm À3. The optical absorbance studies were carried out on these glasses to measure their energy band gaps. The absorption spectra of these glasses were recorded in UV-visible region. No sharp edges were found in the optical spectra, which verifies the amorphous nature of these glasses. The optical band gap energies for these glasses were found to be in the range of 2.89-4.20 eV. The refractive index and polarizability of oxide ion have been calculated by using Lorentz-Lorentz relations. The values of refractive index range from 2.13 to 2.42 and those of polarizability of oxide ion range from 6.51 Â 10 À24 to 7.80 Â 10 À24 cm 3 .

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“…It is also not hygroscopic and has superior physical properties such as high dielectric constant and low melting point (800°C) [7][8][9][10]. The origin of the extraordinary non-linear optical properties of TeO 2 -based glasses is attributed to high hyperpolarizability of a lone electron pair related to the 5 s orbital of tellurium atom.…”

Section: Introductionmentioning

confidence: 99%

Glasses formation, characterization, and crystal-structure determination in the Bi2O3–Sb2O3–TeO2 system prepared in an air

et al. 2011

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The optical properties of tellurite glasses

Abstract: Temperature and wavelength dependence of the thermo-optical properties of tellurite and chalcogenide glasses

Cited by 170 publications

References 14 publications

Inversion in the temperature coefficient of the optical path length close to the glass transition temperature in tellurite glasses

Inversion in the temperature coefficient of the optical path length close to the glass transition temperature in tellurite glasses

Optical properties of samarium doped zinc–phosphate glasses

Glasses formation, characterization, and crystal-structure determination in the Bi2O3–Sb2O3–TeO2 system prepared in an air

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