Journal: Scientific Reports
Article Title: Strong near band-edge excited second-harmonic generation from multilayer 2H Tin diselenide
doi: 10.1038/s41598-021-94612-8
Figure Lengend Snippet: Comparison of thickness-dependent SHG experiments with nonlinear wave propagation simulations for multilayer SnSe 2 . Schematic cross-section view of the: ( a ) bulk nonlinearity model, and ( b ) alternating nonlinear layer model. ( c , d ) Simulation results showing the fundamental field profiles (solid blue curves), SHG field profiles (dashed blue curves) and nonlinear polarization (solid red curves). ( e , f ) Comparison of the experimental (solid colored circles) and simulated (solid blue curves) SHG signals for the two different nonlinearity models considered here. A zoomed-in view of this plot is shown as an inset. (Created in MATLAB v9.6, R2019a, https://in.mathworks.com/ ).
Article Snippet: The nonlinear wave propagation model implemented in COMSOL Multiphysics software is described in the “ ” section.
Techniques: Comparison