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Abstract | Cited by

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.

Graphical abstract: Giant ultrafast optical nonlinearities of annealed Sb2Te3 layers

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