Multi-wavelength mid-infrared plasmonic antennas with single nanoscale focal point. Academic Article uri icon


  • 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.

published proceedings

  • Opt Express

author list (cited authors)

  • Blanchard, R., Boriskina, S. V., Genevet, P., Kats, M. A., Tetienne, J., Yu, N., ... Capasso, F.

citation count

  • 25

complete list of authors

  • Blanchard, Romain||Boriskina, Svetlana V||Genevet, Patrice||Kats, Mikhail A||Tetienne, Jean-Philippe||Yu, Nanfang||Scully, Marlan O||Dal Negro, Luca||Capasso, Federico

publication date

  • October 2011