  The polarization- and angle- resolved optical response of the anapole mode in
silicon nano-disks array have been experimentally and theoretically
investigated. The good agreement betweenmeasured data and simulations yields to
a consistent description of the anapole mode behaviorthat exhibits different
features for TE or TM polarization excitation. Scattering matrix
calculationallows us to disentangle scattered and diffused light contributions
and to provide a quantitativeestimation of the absorbance enhancement
associated to 2D excitation of the anapole mode. Weperformed the multipolar
decomposition of the far-field scattered radiation for both TE and
TMpolarizations and unambiguously identified the anapole resonant condition in
excellent agreementwith the experimental results over a large range of incident
angles. Our findings demonstrate thecontrolled excitation of electromagnetic
anapole modes in engineered arrays of silicon nano-disksfor the development of
optical nanostructures with enhanced light-matter interaction
