Details
Original language | English |
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Article number | 2100206 |
Journal | Laser and Photonics Reviews |
Volume | 15 |
Issue number | 12 |
Early online date | 12 Nov 2021 |
Publication status | Published - 10 Dec 2021 |
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.
Keywords
- bound state in the continuum, metasurfaces, nanoparticles, polarization switching, trapped modes
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Laser and Photonics Reviews, Vol. 15, No. 12, 2100206, 10.12.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Polarization Switching Between Electric and Magnetic Quasi-Trapped Modes in Bianisotropic All-Dielectric Metasurfaces
AU - Evlyukhin, Andrey B.
AU - Poleva, Maria A.
AU - Prokhorov, Alexei V.
AU - Baryshnikova, Kseniia V.
AU - Miroshnichenko, Andrey E.
AU - Chichkov, Boris N.
N1 - Funding Information: The work is supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453) and the Cluster of Excellence QuantumFrontiers (EXC 2123, Project ID 390837967). The models of the metasurfaces composed of silicon prisms with bianisotropic responses have been supported by the Russian Science Foundation (Grant No. 20‐12‐00343).
PY - 2021/12/10
Y1 - 2021/12/10
N2 - 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.
AB - 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.
KW - bound state in the continuum
KW - metasurfaces
KW - nanoparticles
KW - polarization switching
KW - trapped modes
UR - http://www.scopus.com/inward/record.url?scp=85118831910&partnerID=8YFLogxK
U2 - 10.1002/lpor.202100206
DO - 10.1002/lpor.202100206
M3 - Article
AN - SCOPUS:85118831910
VL - 15
JO - Laser and Photonics Reviews
JF - Laser and Photonics Reviews
SN - 1863-8880
IS - 12
M1 - 2100206
ER -