Abstract
We report on a novel approach, based on sub-wavelength spatial phase variations at the focus of high-order beams, to reconfigure the optical near field distribution near plasmonic nanostructures. We first show how the introduction of phase jumps in the incident field driving a gap nanoantenna strongly affects its near field response. Beyond, we demonstrate the feasibility of exploiting this approach to selectively switch on and off hot-spots sites within a complex antenna architecture.
Original language | English |
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Pages (from-to) | 3608-3611 |
Number of pages | 4 |
Journal | Nano Letters |
Volume | 9 |
Issue number | 10 |
DOIs | |
Publication status | Published - 14 Oct 2009 |
Externally published | Yes |