Figure 2: Optical properties of irradiated Bi2Se3 films.
From: Tailoring nonlinear optical properties of Bi2Se3 through ion irradiation
Nonlinear transmission as a function of the probe light intensity of S0 (a), S1 (b), S2 (c) and S3 (d). Color solid lines are fitted curves. Black lines in (a–c) are fitted curves of S0 for comparison. Color bands are error bands (±2.5%). The modulation depth (e) and the saturable intensity (f) of the irradiated Bi2Se3 film under different fluence.
