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Type: Journal article
Title: Dielectric resonator nanoantennas: a review of the theoretical background, design examples, prospects, and challenges
Author: Zou, C.
Withayachumnankul, W.
Bhaskaran, M.
Sriram, S.
Fumeaux, C.
Citation: IEEE Antennas and Propagation Magazine, 2017; 59(6):30-42
Publisher: IEEE
Issue Date: 2017
ISSN: 1045-9243
Statement of
Chengjun Zou, Withawat Withayachumnankul, Madhu Bhaskaran, Sharath Sriram, Christophe Fumeaux
Abstract: Dielectric resonator antennas (DRAs) represent a well established concept for microwave frequencies. In recent years, DRAs and related counterparts have been embraced as structures for higher frequencies, including visible optics. This research trend is facilitated by advances in nanofabrication techniques and motivated by two prominent advantages of DRAs: 1) DRAs are highly efficient because their operation is based on displacement currents in low-loss dielectrics, and 2) DRAs are versatile radiating elements that can support multiple resonance modes when made of medium- or highpermittivity materials. In this article, we review our recent work on optical DRAs for high-efficiency beam control and reconfigurability. This review includes theoretical background and design examples as well as prospects and challenges of optical DRAs that we hope will be of interest to a broad audience in the antenna community.
Keywords: Optical resonators; metals; plasmons; resonant frequency; optical device fabrication; optical polarization; antennas; nanotechnology; dielectrics
Rights: © 2017, IEEE
DOI: 10.1109/MAP.2017.2752638
Appears in Collections:Aurora harvest 8
Electrical and Electronic Engineering publications

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