Effect of zno and moo 3 addition on thermal and mechanical properties of tellurite glasses kadathala linganna optical lens research center, korea photonics technology institute, 124 cheomdan venchure. Technological advances in tellurite glasses properties, processing, and applications. The author has collected rigid data from experiments conducted over the last 50 years and presents here their elastic, anelastic, optical, electrical, and thermal. Tellurite glasses in the form 95x teo 25nb 2 o 5xtio 2, x 5. A tellurite glass particularly usable for an amplifier or oscillator utilizing an optical fiber or other guided wave structure. Tellurite glasses yakhkind 1966 journal of the american.
Pdf rheology of tellurite glasses marcello baricco. Optical properties of bismuth tellurite based glass. The eudoped oxide glasses were prepared by the conventional meltquenching method. Tellurite glasses based on tellurium dioxide teo2 are of technological interest due to their superior. For teo 4 groups, absorption occurs about 650600 cm. Structural models of alkali tellurite glasses, m2oxteo2lx with m li, na, k are presented.
Thermal and optical properties of binary magnesium tellurite glasses. The effect of europium doping on the photoluminescence of znocdoteo 2 glasses is analyzed. Request pdf introduction to tellurite glasses abstract this chapter will introduce tellurite glasses as some smart materials because world has entered the glass age. For small melt volumes, optimized melting conditions have been identified that enable the. A new family of tellurite and phosphotellurite glasses containing heavy metal oxides suitable for ultrabroadband raman amplification was designed and fabricated. Additional chapters address the properties and uses of tellurite glasses in optical sensing, the significance of near infrared nir emissions, solar cells, solar energy harvesting, luminescent displays, and the development of bioactivebased telluritelanthanide teln doped hydroxyapatite composites for biomedical applications. Focusing on thermal, elastic, acoustic, electrical, and optical properties, this second edition incorporates the latest scientific data and uptodate applications of tellurite glass. Tellurite is a rare oxide mineral composed of tellurium dioxide te o 2 it occurs as prismatic to acicular transparent yellow to white orthorhombic crystals. An introduction to tellurite glasses, five lecture series presented by prof. Tellurite glasses have been studied for more than 150 years 5, but more recent versions have been produced with purities exceeding 98.
The results of a neutron diffraction study on the shortrange order in the teo 2li 2 o glassy system are presented. Ir spectra and structures of tellurite glasses springerlink. Results indicate that these germanatetellurite glasses with good spectroscopic properties may provide. A new family of tellurite and phospho tellurite glasses containing heavy metal oxides suitable for ultrabroadband raman amplification was designed and fabricated. Five different concentrations of europium nitrate hexahydrate that varied from 0. On the basis of a structural interpretation of liquid immiscibility in binary oxide systems and of x. Dec 16, 2019 tellurite glasses showing unique properties such as low phonon energy and high linear and nonlinear optical properties have been considered as promising materials for photonic device applications.
Enhanced optical properties of germanate and tellurite. Serves as a key reference on the development of a new generation of photonics devices based on tellurite glasses. Focusing on thermal, elastic, acoustic, electrical, and optical properties, this second edition incorporates the latest scientific data and. A study of tellurite glasses for electroopticoptical fibre devices by sean manning supervisors. Dec 15, 2000 structural models of alkali tellurite glasses, m2oxteo2lx with m li, na, k are presented. In the present study, zinc molybdenum tellurite glasses with the molar composition of 1. Review of tellurite glasses purification issues for mid. Teo 2 based glasses are of high interest as hosts for laser glasses. Osa ternary tellurite glasses for the fabrication of. The distribution of polyhedral types as a function of alkaline ion type and composition is derived.
Physical properties and data is the first and only comprehensive source of physical constants and properties of these unique, noncrystalline solids. Nov 18, 2019 analysis and prediction for elastic properties of quaternary tellurite ag 2 ov 2 o 5 moo 3 teo 2 and wo 3 b 2 o 3 mgoteo 2 glasses amin abd elmoneim, r. Tellurite glasses structure, properties and applications. Reducing the hydroxyl group content in tellurite glass fibers is essential to exploit the intrinsic midinfrared transparency of tellurite glass for optical fiber devices. In the glasses under study, a broad absorption band appears in the range of 870520 cm. Effect of pbo on optical properties of tellurite glass sciencedirect. The book begins with an overview of tellurite glasses, followed by expert chapters on synthesis, properties, and stateoftheart applications. Tellurite glasses handbook routledge handbooks online. Molecular orbital calculations have also been performed for cluster models of sodium tellurite glasses 4 and nao coordinations of 3, 4 and 5 were found. Features of electronic polarizability and approach to.
Realspace models of the glass structure were built using the reverse monte carlo algorithm. Additional chapters address the properties and uses of tellurite glasses in optical sensing, the significance of near infrared nir emissions, solar cells, solar energy harvesting, luminescent displays, and the development of bioactivebased tellurite lanthanide teln doped hydroxyapatite composites for biomedical applications. T value of tfcb glass is larger than those of tf, tfc, tzn glasses, indicating the mixed halide modified tellurite glasses with good thermal stability. We report the first extruded tellurite glass fibers with low hydroxyl oh group content using dry atmosphere for glass melting. Mar 31, 2017 an introduction to tellurite glasses, five lecture series presented by prof. The book begins with an overview of tellurite glasses, followed by expert chapters on synthesis, properties, and stateoftheart applications ranging from laser glass, optical fibers, and optical communications through color tuning, plasmonics, supercontinuum generation, and. In tellurite glasses, the absorption bands in the range of 700 to 600 cm.
Noncrystalline solid tellurite glasses continue to intrigue both academic and industry researchers not only because of their many technical applications, but also because of a fundamental interest in understanding their microscopic mechanisms. Physical properties and data, second edition covers the. This document pdf may be used for research, teaching and private. The book begins with an overview of tellurite glasses, followed by expert chapters on synthesis, properties, and stateoftheart applications ranging from laser glass, optical fibers, and optical communications through color tuning, plasmonics, supercontinuum generation, and other photonic devices. Optical properties of borotellurite glasses containing. Ir optical fiber applications frederic desevedavy, clement. Optical properties of borotellurite glasses containing metal oxides nirmal kaur1, atul khanna1, p. Tellurite glass smart materials applications in optics.
Binary magnesium tellurite glasses x mgo, 100x teo2, studied to determine their glass forming range. Tellurite glasses handbook physical properties and data acoustic. Results indicate that these germanatetellurite glasses with good spectroscopic properties may provide a high gain as a good medium for midinfrared laser. Tellurite glasses are potentially useful for generation of nir and midir laser radiation due to its special features such as lowest phonon energy 750 cm1 among oxide glasses, reasonably wide transmission region 0. Osa extruded tellurite glass and fibers with low oh. These glasses show enhanced properties than the silica based glasses studied so far for the raman amplifier application. The structure of alkali tellurite glasses the journal of. Pdf the dielectricproperties of tellurite glass researchgate. Usually, nonoxide fiber hosts with lower phonon energy are required, because the initial 3 h 4 level is easily quenched in highphononenergy environment.
Tellurite glasses in the form 95x teo 2 5nb 2 o 5 xtio 2, x 5. It is shown with ir spectral investigations that the short range order of certain tellurite glasses, obtained from monomineral crystalline phases, is similar to that of the crystals. Some of the fundamental aspects of tellurite glasses such as glass structure, physical, thermal, optical. References this glass material related article is a. Elena monchiero, daniel milanese, monica ferraris, luigi tallone, and enrico chierici direct writing of waveguides on tellurite glasses. The book begins with an overview of tellurite glasses, followed by expert chapters on synthesis, properties, and. Synthesis, structure and properties of silver tellurite. Detailed thermal analysis was conducted to provide justification for the observed billet scaling results. A study of tellurite glasses for electrooptic optical. These structural units coexist in tellurite glasses, bringing about anomalous behaviors in various properties. Uvvisible absorption spectra for the presented ternary tellurite glass systems have been measured in the wavelength range 200850 nm. Binary xmgo100xteo2 glass were obtained by meltquenching up to 45 mol% of mgo. Pdf the dielectric properties of the parent teo2 glass and two binary glasses have been. Technological advances in tellurite glasses properties.
A study of tellurite glasses for electrooptic optical fibre. Europiumdoped magnesium tellurite glasses were prepared using melt quenching techniques and attenuated total reflection atr spectroscopy was used to study the glass structure. The fourier transform infrared spectroscopy ftir results show the bonding. Recently, application of tellurite glasses has been achieved, especially in blue converted wleds, self. Physical properties and data, second edition covers the current dominant physical properties of this prototype glass system. New topics in the second edition nanocomposites three. This model takes into account the influence of the modifier and the freeelectron pair of the te atom in teo 4 polyhedra. Some tellurite glasses with useful acoustooptical properties for modula. In approximate terms, the glass contain between 58 and 84 molar % of teo 2, up to 24 molar % na 2 o, and between 10 and 30 molar % of zno.
Other alkali and divalent metals may be substituted for the na and zn respectively. Download sample pages 1 pdf 1 mb download table of contents pdf 29. In these glasses, the linear and nonlinear optical properties may be largely enhanced due to the presence of the nps. The dielectricproperties of tellurite glass article pdf available in european journal of glass science and technology part b physics and chemistry of glasses 293. Raouf elmallawany, minufiya university, egypt for the international materials institute for new functionality in glass at lehigh university, bethlehem, pa, dec. Teo4trigonal bipyramids c2v symmetry, deformed teo4 groups, teo3 trigonal pyramids c3v point symmetry, or combinations of these polyhedra.
We investigated the suitability of three ternary tellurite glass families for use as optical fibre materials. We developed tellurite glasses based on the general formula 10na2o. Materials free fulltext europiumdoped tellurite glasses. Structural, thermal, linear and nonlinear opti cal spectroscopy of zinc tellurite glasses 71 3. Compositional trends in the linear and nonlinear refractive indices were.
Several multicomponent glass compositions containing ag 2 o 15, 25 mol% have been selected for investigations. Pdf tellurite glasses present interesting physical and optical properties, such as high rates of linear and nonlinear refraction, low melting points. These new applications in the midinfrared require novel optical materials that transmit in this window and can be fabricated into fiber. Physical properties and data is the first and only comprehensive source of physical constants and properties of these unique. Tellurite glasses showing unique properties such as low phonon energy and high linear and nonlinear optical properties have been considered as promising materials for photonic device applications. The glasses obtained were homogeneous and colored depending on composition. Thermal and mechanical properties of tellurite glasses for.
It occurs in the oxidation zone of mineral deposits in association with native tellurium, emmonsite and other tellurium minerals. This book is the first to provide a comprehensive introduction to the synthesis, optical properties, and photonics applications of tellurite glasses. From the thermal analysis, it was found that the glass. Tellurite glasses, journal of the american ceramic society. Its name comes from tellus, which is the latin name for the planet earth. Tellurite glasses contain tellurium oxide teo 2 as the main component. Germanate and tellurite glasses have these characteristics and were identified as good hosts for trivalent rareearth ions rei and metal or semiconductor nanoparticles nps 112. Development and numerical simulation of tellurite glass microresonators for optical frequency comb generation e. We report the application of the direct writing technique to tellurite glasses of three different compositions and the achievement of the first examples, to our knowledge, of directly written channel waveguides in tellurite glasses. On the basis of the obtained atomic radial distribution function a model for structural recombination in teo 4 tetrahedra for tellurite glasses is proposed. A model for structural recombination in tellurite glasses. Features of electronic polarizability and approach to unique.
Thermal properties of tellurite glasses download pdf. The glass transition temperature increased with increasing mgo content. Tellurite glass smart materials applications in optics and. Furthermore, tellurite glass is compatible with the extrusion technique for producing optical fibre preforms, this being a fabrication strength of our research group. The glass structure was studied with neutron and xray diffraction, and, in the case of sodium, nmr. The present work is a continuation of our earlier investigations on synthesis of nontraditional tellurite glasses and study of their structure and properties. Systematically varied compositions were produced and the scalability of the glass volumes was assessed. An investigation of the crystallizability, density, optical constants, spectral transmission characteristics, and chemical durability of the tellurite glasses as functions of their chemical compositions has led to the development of a new flint. A series of binary tellurite based glasses bi 2 o 3 x teo 2 100. Optical and thermal properties of some tellurite glasses. Sep 14, 2018 in the present study, zinc molybdenum tellurite glasses with the molar composition of 1.
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