Figure 8

Comparison of numerical and experimental results for a homogeneous sample (a–c) and axially structured sample (d–f).
(a) and (d) show the squared absolute value of the polarization density in zx-plane for a homogeneous sample and a 3 layered sample (Polypropylene (PP); air; PP), respectively. (b) and (e) display the calculated anti-Stokes intensity plot at a XY detection plane in 5 mm distance of the center of excitation in forward direction. (c) and (f) highlight the corresponding experimental results. Anti-Stokes radiation of n-octanol is displayed in (c). The far-field anti-Stokes radiation pattern of two layers of two z-displaced polypropylene foils with air in between is shown in (f). The green and white bar correspond to 4 μm and 1 mm, respectively.