Near-Field Mapping of Optical Fabry−Perot Modes in All-Dielectric Nanoantennas

Frolov, A.Y.; Niels, V.; Jiaqi, L.; Xuezhi, Z.; Hanna, P.; Denitza, D.; Shcherbakov, M.R.; Vandenbosch Guy, A.E.; Panov, V.I.; Pol, V.; Fedyanin, A.A.; Moshchalkov, V.V.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 23 января 2018 г.

Авторы: Frolov Aleksandr Yu, Niels Verellen, Jiaqi Li, Xuezhi Zheng, Hanna Paddubrouskaya, Denitza Denkova, Shcherbakov Maxim R., Vandenbosch Guy A.E., Panov Vladimir I., Pol Van Dorpe, Fedyanin Andrey A., Moshchalkov Victor V.
Журнал: Nano Letters
Том: 17
Год издания: 2017
Издательство: American Chemical Society
Местоположение издательства: United States
Первая страница: 7629
Последняя страница: 7637
DOI: 10.1021/acs.nanolett.7b03624
Аннотация: Subwavelength optical resonators and scatterers are dramatically expanding the toolset of the optical sciences and photonics engineering. By offering the opportunity to control and shape light waves in nanoscale volumes, recent developments using high-refractive-index dielectric scatterers gave rise to efficient flat-optical components such as lenses, polarizers, phase plates, color routers, and nonlinear elements with a subwavelength thickness. In this work, we take a deeper look into the unique interaction of light with rod-shaped amorphous silicon scatterers by tapping into their resonant modes with a localized subwavelength light source an aperture scanning near-field probe. Our experimental configuration essentially constitutes a dielectric antenna that is locally driven by the aperture probe. We show how leaky transverse electric and magnetic modes can selectively be excited and form specific near-field distribution depending on wavelength and antenna dimensions. The probe’s transmittance is furthermore enhanced upon coupling to the Fabry−Perot cavity modes, revealing all-dielectric nanorods as efficient transmitter antennas for the radiation of subwavelength emitters, in addition to constituting an elementary building block for all-dielectric metasurfaces and flat optics.
Добавил в систему: Фролов Александр Юрьевич

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Near-Field Mapping of Optical Fabry−Perot Modes in All-Dielectric Nanoantennasстатья

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