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Polarization Aspects of Localized Optical Spots Obtained Using Plasmonic Nano-Antennas

Published online by Cambridge University Press:  17 April 2019

Erdem Ogut  and
Kursat Sendur
Erdem Ogut
Affiliation:
Sabanci University, Faculty of Engineering and Natural Sciences, Istanbul, 34956, Turkey
Kursat Sendur
Affiliation:
Sabanci University, Faculty of Engineering and Natural Sciences, Istanbul, 34956, Turkey
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Abstract

Electromagnetic radiation beyond the diffraction limit with a particular polarization emerges as a need for plasmonic applications. One of these applications is all-optical magnetic recording, which requires circularly-polarized electromagnetic radiation. In this study, a plasmonic cross-dipole nano-antenna is illuminated with diffraction-limited linearly polarized radiation. An optimal configuration for the nano-antenna and the polarization angle of the incident light is identified to obtain linearly, circularly, and elliptically polarized optical spots beyond the diffraction limit. The Poincaré sphere representation is utilized to visually present calculated Stokes parameters for optical spots with linear, circular, and elliptical polarizations from specific antenna geometries.

Keywords

opticaloptical propertiesnanoscale
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1248: Symposium D – Solution Processing of Inorganic and Hybrid Materials for Electronics and Photonics , 2010 , 1248-D14-04
Copyright
Copyright © Materials Research Society 2010

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