Xavier Zambrano-Puyalto, Faculty of Science and Engineering
Characterization of nano-structures with light’s symmetries
Light beams can be symmetric under different transformations: translations, rotations, mirror symmetries, duality transformations, etc. In my research project, a systematic way of characterizing these symmetries has been developed. Then, it has been shown that symmetric light beams can be used to control light-matter interactions at the nano-scale. Particular applications have been developed, both theoretically and experimentally. Inducing a dual behaviour on a non-dual sample, the excitation of high multipolar order resonances and the measurement of circular dichroism using vortex beams are among them.