Fig. 5
From: Polarization nano-tomography of tightly focused light landscapes by self-assembled monolayers

Detecting non-paraxial fields by fluorescent SAM. The normalized fluorescence intensity of tightly focused vectorial flower or web (σ12 = ±8) with additional phase vortices of charge \(\ell\) is analyzed experimentally (a and c, respectively) as well as numerically (b and d, respectively), proving the detection of non-paraxial properties. Shown scale corresponds to focal size