Optimization of the Saturable Absorption of 2D Bi2Te3 Layers
Article
Jimenez de la Vega, N, Karimbana Kandy, A, Lemarchand, F et al. (2025). Optimization of the Saturable Absorption of 2D Bi2Te3 Layers
. 12(8), 10.3390/photonics12080822
Jimenez de la Vega, N, Karimbana Kandy, A, Lemarchand, F et al. (2025). Optimization of the Saturable Absorption of 2D Bi2Te3 Layers
. 12(8), 10.3390/photonics12080822
The saturable absorption of 2D Bi2Te3 layers is studied by using the Z-scan technique employing infrared 400 fs laser pulses. Optimization of the nonlinearities has been carried out by measuring the third-order nonlinear susceptibilities as a function of the film thickness. A thorough optimization of the thin film annealing conditions has been performed and is presented. For each thickness, the annealing parameters have been separately investigated. Scanning electron microscopy, X-ray diffraction, and UV-Vis spectrophotometry studies have also been performed on the as-deposited and crystallized 2D layers.
