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Plasmonic Vortices Twisting the Far-Field

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Structured light beams with phase or polarization singularities reveal unique optical properties with numerous applications. Chiral nanostructures draw promising routes for enhancing singular optical signatures with new functionalities. Recently, near-field singular optical effects have been of interest in relation to surface plasmon (SP) vortices which have been shown to carry orbital angular momentum (OAM).

© 2013 Optical Society of America

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