Optimization of linear and nonlinear optical parameters of As40Se50Te10 thin films by thermal annealing

[Display omitted] •The linear (n) and nonlinear refractive index (n2) increased with annealing.•The 3rd order nonlinear susceptibility (χ(3)) increased.•The optical as well as electrical conductivity and extinction coefficient increased.•The optical band gap reduced with annealing with an increase i...

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