Highly directive Fabry-Perot leaky-wave nanoantennas based on optical partially reflective surfaces

M. Lorente-Crespo; C. Mateo-Segura

doi:10.1063/1.4919790

Highly directive Fabry-Perot leaky-wave nanoantennas based on optical partially reflective surfaces

M. Lorente-Crespo, C. Mateo-Segura

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6 Citations (Scopus)

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Abstract

Nanoantennas enhance the conversion between highly localized electromagnetic fields and far-field radiation. Here, we investigate the response of a nano-patch partially reflective surface backed with a silver mirror to an optical source embedded at the centre of the structure. Using full wave simulations, we demonstrate a two orders of magnitude increased directivity compared to the isotropic radiator, 50% power confinement to a 13.8° width beam and a ±16 nm bandwidth. Our antenna does not rely on plasmonic phenomena thus reducing non-radiative losses and conserving source coherence.

Original language	English
Article number	183104
Journal	Applied Physics Letters
Volume	106
Issue number	18
Early online date	5 May 2015
DOIs	https://doi.org/10.1063/1.4919790
Publication status	Published - 2015

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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Highly directive Fabry-Perot leaky-wave nanoantennas based on optical partially reflective surfaces

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