Optical Transitions in Chalcogenide Glasses From the Point of View of a Barrier-Cluster Model

Ivan Baník

doi:10.4028/www.scientific.net/AMR.39-40.253

Paper Titles

Luminescent ZnO-Al₂O₃-SiO₂ Glasses and Glass Ceramics
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Introduction of Silver in Poled Sodium and Niobium Borophosphate Glasses: Characterization by Electrical Transmitted Current and SHG Measurements
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Thermal Stability and Optical Properties of Er³⁺ Doped BaTi₂O₅ Glasses
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Second-Harmonic Generation in Thermally Poled Na₂O-Al₂O₃-TeO₂ Glasses
p.247

Optical Transitions in Chalcogenide Glasses From the Point of View of a Barrier-Cluster Model
p.253

Lead-Free High Refractive Index Glasses Produced from Local Raw Materials
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7- and 19-Element-Core Bend-Resistant Microstructured Fibers
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Fluorine Containing High-Silica Glasses for Speciality Optical Fibers
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The Influence of the Vitreous Matrix for the Determination of the Lanthanides Doping Concentration from the Optical Transmission Spectra
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Optical Transitions in Chalcogenide Glasses From the Point of View of a Barrier-Cluster Model

Abstract:

A barrier-cluster model of chalcogenide glasses is employed to analyze optical transitions near the absorption edge. The influence of temperature on the optical absorption is studied. The model is used to explain the temperature shift of exponential tails of the optical absorption and the temperature dependence of the optical forbidden-band width at low temperatures.