Measurement of non-linear optical coefficients of chalcogenide glasses near the fundamental absorption band edge

Measurement of non-linear optical coefficients of chalcogenide glasses near the fundamental absorption band edge

A time-resolved pump-probe method is used for the evaluation of non-linear optical coefficients of chalcogenide glasses from the As-S-Se and Ge-Se systems near their fundamental absorption band edges. The results are analyzed via comparison with the spectral dependencies of the non-linear optical co...

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Bibliographic Details
Main Authors: Romanova, Elena, Kuzyutkina, Yulia, Shiryaev, Vladimir, Abdel-Moneim, Nabil, Furniss, David, Benson, Trevor, Seddon, Angela, Guizard, Stephane
Format: Article
Published: Elsevier 2018
Subjects:
Nonlinear optics; Optical materials; Chalcogenide glasses; Amorphous semiconductors; Femtosecond lasers
Online Access:https://eprints.nottingham.ac.uk/44342/
Description
Summary:A time-resolved pump-probe method is used for the evaluation of non-linear optical coefficients of chalcogenide glasses from the As-S-Se and Ge-Se systems near their fundamental absorption band edges. The results are analyzed via comparison with the spectral dependencies of the non-linear optical coefficients of crystalline semiconductors; the role of electron transitions through the gap states of chalcogenide glasses is discussed.

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