Polarization Switching Between Electric and Magnetic Quasi-Trapped Modes in Bianisotropic All-Dielectric Metasurfaces

verfasst von
Andrey B. Evlyukhin, Maria A. Poleva, Alexei V. Prokhorov, Kseniia V. Baryshnikova, Andrey E. Miroshnichenko, Boris N. Chichkov
Abstract

A general strategy for the realization of electric and magnetic quasi-trapped modes located at the same spectral position is presented. This strategy's application makes it possible to design metasurfaces allowing switching between the electric and magnetic quasi-trapped modes by changing the polarization of the incident light wave. The developed strategy is based on two stages: the application of the dipole approximation for determining the conditions required for the implementation of trapped modes at certain spectral positions and the creation of the energy channels for their excitation by introducing a weak bianisotropy in nanoparticles. Since excitation of trapped modes results in a concentration of electric and magnetic energies in the metasurface plane, the polarization switching provides possibilities to change and control the localization and distribution of optical energy at the sub-wavelength scale. A practical method for spectral tuning of quasi-trapped modes in metasurfaces composed of nanoparticles with a preselected shape is demonstrated. As an example, the optical properties of a metasurface composed of silicon triangular prisms are analyzed and discussed.

Organisationseinheit(en)
Institut für Quantenoptik
QuantumFrontiers
Externe Organisation(en)
St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
Moscow Institute of Physics and Technology
Stoletov Vladimir State University
University of New South Wales (UNSW)
Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS)
Typ
Artikel
Journal
Laser and Photonics Reviews
Band
15
ISSN
1863-8880
Publikationsdatum
10.12.2021
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Elektronische, optische und magnetische Materialien, Atom- und Molekularphysik sowie Optik, Physik der kondensierten Materie
Elektronische Version(en)
https://doi.org/10.1002/lpor.202100206 (Zugang: Offen)