Experimental evidence of positive and negative nonlinear refractive index change in As/sub 2/Se/sub 3/

G Boudebs,J Troles,F Sanchez,H Leblond,F Smektala,S Cherukulappurath

doi:10.1109/cleoe.2003.1312294

Experimental evidence of positive and negative nonlinear refractive index change in As/sub 2/Se/sub 3/

G Boudebs, J Troles + Show 4 more

https://doi.org/10.1109/cleoe.2003.1312294

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Publication Date: Jan 17, 2020

Affiliation: University of Angers, University of Rennes

#Positive Nonlinear Refractive Index #Negative Refractive Index Change + Show 8 more

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Abstract

In this paper we present spatially resolved experimental observations of simultaneous presence of positive and negative nonlinear dephasing response in chalcogenide optical glass As/sub 2/Se/sub 3/. The technique is based on a pump/probe experiment using a Mach-Zehnder interferometer combined with a CCD camera where only one laser shot is needed to obtain a great number of measurement. The positive and negative nonlinear refractive index change in As/sub 2/Se/sub 3/ is discussed.

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