Berlin 2024 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 46: Plasmonics and Nanooptics IV: Fabrication and Applications
O 46.8: Vortrag
Mittwoch, 20. März 2024, 12:15–12:30, MA 042
A numeric analysis of the angular distribution of dielectric Mie void structures — •Benjamin Reichel1, Michelle Pfahl1, Serkan Arslan1, Adrià Canós Valero1, Mario Hentschel2, Thomas Weiss2, and Harald Giessen1 — 14th Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany — 2Institute of Physics, University of Graz, and NAWI Graz, Universitätsplatz 5, Graz 8010, Austria
Controlling the behavior of light at the nanoscale is a significant challenge in various applications such as metadevices, diffraction gratings and resonant surfaces. The confinement of light is one of the typical interactions used in such devices. Recently, Mie voids have emerged as a promising platform for confining electromagnetic waves, possibly extending down to ultraviolet wavelengths in air. Therefore understanding and theoretical modeling the electromagnetic scattering behaviour of Mie voids are crucial for their effective use. In this study, we conduct a numerical study of the scattering behaviour for a periodic dielectric Mie void metasurface, alongside simulations for single Mie voids using widely used commercial software, COMSOL Multiphysics, and an in-house MATLAB code. These insights will be important in the development of resonant meta-structure designs. Finally leveraging the full resolution of electromagnetic fields within the void will open avenues for novel spectroscopy and active manipulation strategies, for example for coupling single quantum emitters via Mie voids to directed radiative modes.
Keywords: Phase function; Mie voids; Cross section; Electromagnetic scattering; Angular distribution