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

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.

Authors:
;  [1]
  1. Institute of Sensors, Signals and Systems, Heriot-Watt University, EH14 4AS Edinburgh (United Kingdom)
Publication Date:
OSTI Identifier:
22399014
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 106; Journal Issue: 18; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANTENNAS; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; CONFINEMENT; CONVERSION; ELECTROMAGNETIC FIELDS; LOSSES; MIRRORS; PLASMONS; RADIATORS; SILVER; SURFACES

Citation Formats

Lorente-Crespo, M., and Mateo-Segura, C., E-mail: C.Mateo-Segura@hw.ac.uk. Highly directive Fabry-Perot leaky-wave nanoantennas based on optical partially reflective surfaces. United States: N. p., 2015. Web. doi:10.1063/1.4919790.
Lorente-Crespo, M., & Mateo-Segura, C., E-mail: C.Mateo-Segura@hw.ac.uk. Highly directive Fabry-Perot leaky-wave nanoantennas based on optical partially reflective surfaces. United States. doi:10.1063/1.4919790.
Lorente-Crespo, M., and Mateo-Segura, C., E-mail: C.Mateo-Segura@hw.ac.uk. Mon . "Highly directive Fabry-Perot leaky-wave nanoantennas based on optical partially reflective surfaces". United States. doi:10.1063/1.4919790.
@article{osti_22399014,
title = {Highly directive Fabry-Perot leaky-wave nanoantennas based on optical partially reflective surfaces},
author = {Lorente-Crespo, M. and Mateo-Segura, C., E-mail: C.Mateo-Segura@hw.ac.uk},
abstractNote = {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.},
doi = {10.1063/1.4919790},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 18,
volume = 106,
place = {United States},
year = {2015},
month = {5}
}