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Title: Effect of Te on Linear and Non-linear Optical Properties of New Quaternary Ge-Se-Sb-Te Chalcogenide Glasses
Authors: Sharma, Neha
Sharda, Sunanda
Katyal, S.C.
Sharma, Vineet
Sharma, Pankaj
Keywords: Optical materials
Thin films
Tauc gap
Refractive index
Issue Date: 2014
Publisher: Jaypee University of Information Technology, Solan, H.P.
Abstract: We report linear and non-linear optical properties of a new quaternary chalcogenide glass series Ge19-ySe63.8Sb17.2Tey (y = 0, 2, 4, 6, 8, 10). In linear optical properties; refractive index, extinction coefficient and the Tauc gap are reported and their variation with Te content has been discussed. In non-linear properties; third order nonlinear susceptibility and non-linear refractive index has been discussed. The variation of non-linear refractive index has also been reported with normalized photon energy. A correlation between the Tauc gap and nonlinear refractive index has been discussed. Results indicate that these materials may find applications in modern optical devices.
Appears in Collections:Journal Articles

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