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Title: New Quaternary Sb-Se-Ge-In Chalcogenide Glasses: Linear and Nonlinear Optical Properties
Authors: Sharda, Sunanda
Sharma, Neha
Sharma, Pankaj
Sharma, Vineet
Keywords: Chalcogenides
Thin films
Optical properties
Issue Date: 2013
Publisher: Jaypee University of Information Technology, Solan, H.P.
Abstract: Chalcogenide glasses find extensive applications in infrared (IR) devices and optical communication. Optical parameters of Sb10Se65Ge25 yIny thin films, deposited by the thermal evaporation technique, have been analyzed using ultraviolet–visible-near IR spectroscopy. The transitions in the forbidden gap are indirect. The effect of indium (In) alloying on the nonlinear optical parameters has been studied. A shift in optical absorption edge towards higher wavelength shows that the width of the localized states changes, which affects the optical parameters of the system. The high nonlinearity of these glasses makes them suitable for optical regeneration and Raman amplification.
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