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

Authors :: Moisset C
Verrone RN
Bourgade A
Zeweldi GT
Minissale M
Gallais L
Perrin-Pellegrino C
Akhouayri H
Lumeau J
Natoli JY
Iliopoulos K
Source :: Nanoscale advances [Nanoscale Adv] 2020 Feb 17; Vol. 2 (4), pp. 1427-1430. Date of Electronic Publication: 2020 Feb 17 (Print Publication: 2020).
Publication Year :: 2020
Abstract: The optimization of thin Sb <subscript>2</subscript> Te <subscript>3</subscript> 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.<br />Competing Interests: There are no conflicts of interest to declare.<br /> (This journal is © The Royal Society of Chemistry.)