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Tuning the polarization states of optical spots at the nanoscale on the poincar´e sphere using a plasmonic nanoantenna

Öğüt, Erdem and Şendur, Kürşat (2010) Tuning the polarization states of optical spots at the nanoscale on the poincar´e sphere using a plasmonic nanoantenna. In: International Conference on Metamaterials, Photonic crystals and Plasmonics (META'10), Cairo, Egypt

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Abstract

It is shown that the polarization states of optical spots at the nanoscale can be manipulated to various points on the Poincar´e sphere using a plasmonic nanoantenna. Linearly, circularly, and elliptically polarized near-field optical spots at the nanoscale are achieved with various polarization states on the Poincar´e sphere using a plasmonic nanoantenna. A novel plasmonic nanoantenna is illuminated with diffraction-limited linearly polarized light. It is demonstrated that the plasmonic resonances of perpendicular and longitudinal components of the nanoantenna and the angle of incident polarization can be tuned to obtain optical spots beyond the diffraction limit with a desired polarization and handedness.

Item Type:Papers in Conference Proceedings
Subjects:UNSPECIFIED
ID Code:13935
Deposited By:Kürşat Şendur
Deposited On:12 May 2010 10:08
Last Modified:12 May 2010 10:08

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