期刊
OPTICS EXPRESS
卷 19, 期 22, 页码 22113-22124出版社
Optica Publishing Group
DOI: 10.1364/OE.19.022113
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资金
- Harvard Nanoscale Science and Engineering Center
- National Science Foundation (NSF) [EEC-0540832, ECCS-0846651]
- FAS Science Division Research Computing Group at Harvard University
- Office of Naval Research
- Robert A. Welch Foundation [A-1261]
- Ecole Normale Superieure de Cachan, France
- Air Force program Deterministic Aperiodic Structures for On-chip Nanophotonic and Nanoplasmonic Device Applications [FA9550-10-1-0019]
- EU COST Action [MP0702]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [846651] Funding Source: National Science Foundation
We propose and demonstrate a novel photonic-plasmonic antenna capable of confining electromagnetic radiation at several mid-infrared wavelengths to a single sub-wavelength spot. The structure relies on the coupling between the localized surface plasmon resonance of a bow-tie nanoantenna with the photonic modes of surrounding multi-periodic particle arrays. Far-field measurements of the transmission through the central bow-tie demonstrate the presence of Fano-like interference effects resulting from the interaction of the bow-tie antenna with the surrounding nanoparticle arrays. The near-field of the multi-wavelength antenna is imaged using an aperture-less near-field scanning optical microscope. This antenna is relevant for the development of near-field probes for nanoimaging, spectroscopy and biosensing. (C) 2011 Optical Society of America
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