Figure 4

(a) Variation between the simulated and measured apparent absorption coefficients (α*) of CoFeB thin films (tCFB: 1–20 nm). (b) The Gaussian distribution of electric field intensity \(({|E|}^{2})\) absorption in the tCFB layers. (c) Numerically calculated normalised \({|E|}^{2}\) absorption as a function of tCFB at the point of laser incidence.