Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/116755
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Type: Journal article
Title: Enhanced terahertz magnetic dipole response by subwavelength fiber
Author: Atakaramians, S.
Shadrivov, I.
Miroshnichenko, A.
Stefani, A.
Ebendorff-Heidepriem, H.
Monro, T.
Afshar, V.
Citation: APL Photonics, 2018; 3(5):051701-1-051701-9
Publisher: American Institute of Physics
Issue Date: 2018
ISSN: 2378-0967
2378-0967
Statement of
Responsibility: 
Shaghik Atakaramians, Ilya V. Shadrivov, Andrey E. Miroshnichenko, Alessio Stefani, Heike Ebendorff-Heidepriem, Tanya M. Monro and Shahraam Afshar V.
Abstract: Dielectric sub-wavelength particles have opened up a new platform for realization of magnetic light. Recently, we have demonstrated that a dipole emitter by a sub-wavelength fiber leads to an enhanced magnetic response. Here, we experimentally demonstrate an enhanced magnetic dipole source in the terahertz frequency range. By placing the fiber next to the hole in a metal screen, we find that the radiation power can be enhanced more than one order of magnitude. The enhancement is due to the excitation of the Mie-type resonances in the fiber. We demonstrate that such a system is equivalent to a double-fiber system excited by a magnetic source. This coupled magnetic dipole and optical fiber system can be considered a unit cell of metasurfaces for manipulation of terahertz radiation and is a proof-of-concept of a possibility to achieve enhanced radiation of a dipole source in proximity of a sub-wavelength fiber. It can also be scaled down to optical frequencies opening up promising avenues for developing integrated nanophotonic devices such as nanoantennas or lasers on fibers.
Rights: © 2018 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
RMID: 0030102343
DOI: 10.1063/1.5010348
Grant ID: http://purl.org/au-research/grants/arc/DE140100614
Appears in Collections:IPAS publications

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