Quadrumer-based dielectric metasurfaces featuring magnetic octupole resonance

Авторы: Terekhov Pavel D., Evlyukhin Andrey B., Volkov Valentyn S., Shalin Alexander S., Karabchevsky Alina
Сборник: SPIE journal
Том: 11483
Год издания: 2020
Место издания: SPIE journals@spie.org
DOI: 10.1117/12.2568945
Аннотация: Dielectric nanophotonics became a hot topic during the last decade. Particularly, a lot of relevant studies were devoted to metasurfaces and their optical properties. Here we propose and numerically study the quadrumerbased silicon metasurface supporting magnetic octupole response. Specific meta-atoms allow to excite magnetic octupole moment in optical range without going beyond the diffraction limit. Comparing to a metasurface based on solid blocks of similar size, the quadrumer-based metasurface feature significant absorption enchantment and strong change of a reflection spectrum. Obtained results can be exploited in development of novel sensors, optical elements and energy harvesting devices. © 2020 SPIE.
Добавил в систему: Шалин Александр Сергеевич

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