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Giant ultrafast optical nonlinearities of annealed Sb2Te3 layers
Charles Moisset1, Richard-Nicolas Verrone1, Antoine Bourgade1
1Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel Marseille France konstantinos.iliopoulos@fresnel.fr.
Nanoscale Advances
|September 22, 2022
Abstract:
The optimization of thin Sb2Te3 films in order to obtain giant ultrafast optical nonlinearities is reported. The ultrafast nonlinearities of the thin film layers are studied by the Z-scan technique. Giant saturable absorption is obtained, which is the highest ever reported, by means of the Z-scan technique.
