Journal
NANO LETTERS
Volume 9, Issue 10, Pages 3608-3611Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl901821s
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Funding
- Spanish Ministry of Sciences [TEC2007-60186/MIC, CSD2007-046-NanoLight.es]
- Fundacio CELLEX Barcelona
- ICREA Funding Source: Custom
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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.
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