journal article·2011-06

Tuning the polarization states of optical spots at the nanoscale on the Poincaré sphere using a plasmonic nanoantenna

E. Öğüt, K. Şendur

Applied Physics A· Volume 103· Issue 3
Publisher page

Abstract

It is shown that the polarization states of optical spots at the nanoscale can be manipulated to various points on the Poincare 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 Poincare 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.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Plasmonic and Surface Plasmon Research · Orbital Angular Momentum in Optics · Near-Field Optical Microscopy

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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