198 citations · 1k across the 23 of their papers we have counts for
5 papers · 2 filters
Far-field measurements of vortex beams interacting with nanoholes
Xavier Zambrana-Puyalto, Xavier Vidal, Ivan Fernandez-Corbaton +1
We measure the far-field intensity of vortex beams going through nanoholes. The process is analyzed in terms of helicity and total angular momentum. It is seen that the total angul…
Equalizing the near and far electromagnetic fields around particles made of different materials
Alexis Devilez, Xavier Zambrana-Puyalto, Brian Stout +1
We demonstrate that the electromagnetic fields scattered by particles made of different materials can be equalized. Emphasize is placed first in metallic nanoparticles that host lo…
Topological metrology and its application to optical position sensing
Nora Tischler, Mathieu L. Juan, Sukhwinder Singh +4
We motivate metrology schemes based on topological singularities as a way to build robustness against deformations of the system. In particular, we relate reference settings of met…
Purcell factor of Mie resonators featuring electric and magnetic modes
Xavier Zambrana-Puyalto, Nicolas Bonod
We present a modal approach to compute the Purcell factor in Mie resonators exhibiting both electric and magnetic resonances. The analytic expressions of the normal modes are used…
Control and characterization of nano-structures with the symmetries of light
Xavier Zambrana-Puyalto
Light beams can be symmetric under different transformations: translations, rotations, mirror symmetries, duality transformations, etc. In this thesis, a systematic way of characte…