Interaction effects in chiral acoustoplasmonic nanostructures

Beatriz Castillo López de Larrinzar; N. D. Lanzillotti-Kimura; Antonio García-Martín

doi:10.1117/12.3022068

10 June 2024 Interaction effects in chiral acoustoplasmonic nanostructures

Beatriz Castillo López de Larrinzar, N. D. Lanzillotti-Kimura, Antonio García-Martín

Proceedings Volume 12991, Nanophotonics X; 129910B (2024) https://doi.org/10.1117/12.3022068
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

We present a comprehensive study of the elementary dipolar contributions to the absorption and scattering cross sections in chiral, twisted, vertically stacked plasmonic plates that have been proposed as acoustoplasmonic transducers. Using a very basic model system we show scattering and absorption cross sections presenting very large qualitative differences for left-circular and right-circular polarizations. We make use of an expansion in vector-spherical-harmonics multipoles to analyze the different contributions to the cross sections depending on the helicity of the incoming wave. In the analysis of the scattering cross section, we demonstrate that interactions not only modify the spectral dependence of the dipoles representing the elements in the nanostructure, but they affect the cross section itself elucidating the dependence on the helicity of the incoming light beam.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Beatriz Castillo López de Larrinzar, N. D. Lanzillotti-Kimura, and Antonio García-Martín "Interaction effects in chiral acoustoplasmonic nanostructures", Proc. SPIE 12991, Nanophotonics X, 129910B (10 June 2024); https://doi.org/10.1117/12.3022068

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