Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/78574
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Dielectric resonator nanoantennas at visible frequencies
Author: Zou, L.
Withayachumnankul, W.
Shah, C.
Mitchell, A.
Bhaskaran, M.
Sriram, S.
Fumeaux, C.
Citation: Optics Express, 2013; 21(1):1344-1352
Publisher: Optical Soc Amer
Issue Date: 2013
ISSN: 1094-4087
1094-4087
Statement of
Responsibility: 
Longfang Zou, Withawat Withayachumnankul, Charan M. Shah, Arnan Mitchell, Madhu Bhaskaran, Sharath Sriram, and Christophe Fumeaux
Abstract: Drawing inspiration from radio-frequency technologies, we propose a realization of nano-scale optical dielectric resonator antennas (DRAs) functioning in their fundamental mode. These DRAs operate via displacement current in a low-loss high-permittivity dielectric, resulting in reduced energy dissipation in the resonators. The designed nonuniform planar DRA array on a metallic plane imparts a sequence of phase shifts across the wavefront to create beam deflection off the direction of specular reflection. The realized array clearly demonstrates beam deflection at 633 nm. Despite the loss introduced by field interaction with the metal substrate, the proposed low-loss resonator concept is a first step towards nanoantennas with enhanced efficiency. The compact planar structure and technologically relevant materials promise monolithic circuit integration of DRAs.
Rights: © 2013 OSA
RMID: 0020124862
DOI: 10.1364/OE.21.001344
Grant ID: http://purl.org/au-research/grants/arc/LE100100215
Appears in Collections:Electrical and Electronic Engineering publications

Files in This Item:
File Description SizeFormat 
hdl_78574.pdfPublished version2.24 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.