3 papers
physics.optics2022
Inverse design of focused vector beams for mode excitation in optical nanoantennas
Xiaorun Zang, Ari T. Friberg, Tero Setälä +1
We propose a free-space, inverse design of nanostructure's effective mode-matching fields via a backward propagation of tightly focused vector beams to the pupil plane of an aplana…
physics.optics2020
Efficient hybrid-mode excitation in plasmonic nanoantennas by tightly focused higher-order vector beams
Xiaorun Zang, Godofredo Bautista, Léo Turquet +3
Efficient optical excitation of hybridized plasmon modes in nanoantennas is vital to achieve many promising functionalities, but it can be challenging due to a field-profile mismat…
physics.optics2018
Less is more - enhancement of second-harmonic generation from metasurfaces by reduced nanoparticle density
Robert Czaplicki, Antti Kiviniemi, Mikko J. Huttunen +7
We investigate optical second-harmonic generation (SHG) from metasurfaces where noncentrosymmetric V-shaped gold nanoparticles are ordered into regular array configurations. In con…