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Proceedings Paper

Dipole-fiber systems: radiation field patterns, effective magnetic dipoles, and induced cavity modes
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Paper Abstract

We study the radiation patterns produced by a dipole placed at the surface of a nanofiber and oriented perpendicular to it, either along the radial (r-oriented) or azimuthal (Φ-oriented) directions. We find that the dipole induces an effective circular cavity-like leaky mode in the nanofiber. The first radiation peak of the Φ-oriented dipole contributes only to TE radiation modes, while the radiation of the r-oriented dipole is composed of both TE and TM radiation modes, with relative contribution depending on the refractive index of the nanofiber. We reveal that the field pattern of the first resonance of a Φ-oriented dipole is associated with a magnetic dipole mode and strong magnetic response of an optical nanofiber.

Paper Details

Date Published: 22 December 2015
PDF: 6 pages
Proc. SPIE 9668, Micro+Nano Materials, Devices, and Systems, 96683J (22 December 2015); doi: 10.1117/12.2204783
Show Author Affiliations
Shaghik Atakaramians, The Univ. of Sydney (Australia)
Andrey E. Miroshnichenko, The Australian National Univ. (Australia)
Ilya V. Shadrivov, The Australian National Univ. (Australia)
Tanya M. Monro, Univ. of South Australia (Australia)
The Univ. of Adelaide (Australia)
Yuri S. Kivshar, The Australian National Univ. (Australia)
Shahraam V. Afshar, Univ. of South Australia (Australia)
The Univ. of Adelaide (Australia)

Published in SPIE Proceedings Vol. 9668:
Micro+Nano Materials, Devices, and Systems
Benjamin J. Eggleton; Stefano Palomba, Editor(s)

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