Abstract
We demonstrate experimentally the generation and near-field imaging of nondiffracting surface waves, plasmonic Airy beams, propagating on the surface of a gold metal film. The Airy plasmons are excited by an engineered nanoscale phase grating, and demonstrate significant beam bending over their propagation. We show that the observed Airy plasmons exhibit self-healing properties, suggesting novel applications in plasmonic circuitry and surface optical manipulation.
- Received 12 May 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.116802
© 2011 American Physical Society
Viewpoint
ViewpointAiry plasmons defeat diffraction on the surface
Published 6 September 2011
The Airy plasmon is unique since it represents the only possible one-dimensional diffraction-free solution.
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