Light trapping in symmetric metasurface via electric octupole resonance

Pavel D. Terekhov; Alexei V. Prokhorov; Mikhail Yu. Gubin; Alexander V. Shesterikov; Xingjie Ni; Vladimir R. Tuz; Andrey B. Evlyukhin

doi:10.1117/12.2677788

4 October 2023 Light trapping in symmetric metasurface via electric octupole resonance

Pavel D. Terekhov, Alexei V. Prokhorov, Mikhail Yu. Gubin, Alexander V. Shesterikov, Xingjie Ni, Vladimir R. Tuz, Andrey B. Evlyukhin

Author Affiliations +

Proceedings Volume 12646, Metamaterials, Metadevices, and Metasystems 2023; 126460A (2023) https://doi.org/10.1117/12.2677788
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

We reveal the peculiarities of the trapped mode manifestation in metasurfaces composed of an array of MoS₂ disk-shaped resonators. The corresponding resonance arises as a result of the excitation of the electric octupole moment existing in each meta-atom of the metasurface and multipole coupling effects in the array. In particular, we show that the effect appears due to a lattice-induced coupling between the electric octupole and electric dipole moments in the metasurface. The coupling effect between the resonant quasi-trapped octupole mode and the suppressed electric dipole results in the appearance of the narrow-band transparency conditions in the metasurface spectra with a simultaneous storing of electromagnetic energy inside the resonators. The discussed approach is quite general and can be implemented in metasurfaces supporting Mie-type modes in meta-atoms made of different materials.

Conference Presentation

Citation Download Citation

Pavel D. Terekhov, Alexei V. Prokhorov, Mikhail Yu. Gubin, Alexander V. Shesterikov, Xingjie Ni, Vladimir R. Tuz, and Andrey B. Evlyukhin "Light trapping in symmetric metasurface via electric octupole resonance", Proc. SPIE 12646, Metamaterials, Metadevices, and Metasystems 2023, 126460A (4 October 2023); https://doi.org/10.1117/12.2677788

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