Giant ultrafast optical nonlinearities of annealed Sb 2 Te 3 layers.

Charles MoissetRichard-Nicolas VerroneAntoine BourgadeGebrehiwot Tesfay ZeweldiMarco MinissaleLaurent Gallais Carine Perrin-PellegrinoHassan AkhouayriJulien LumeauJean-Yves NatoliKonstantinos Iliopoulos

Published in: Nanoscale advances (2020)

The optimization of thin Sb 2 Te 3 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.

Keyphrases

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