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NanoPlasmon

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We investigate the fundamental properties of light-matter interactions in metal and metal-semiconductor nanostructures, with special emphasis on plasmonic phenomena, optical confinement and absorption in nanoscale volumes, enhancement of the local density of states in nano-antennas and nanophotonic structures, radiative and non-radiative processes, carrier cooling,… These studies are the basis for the design, fabrication and demonstration of new devices for Solar Photovoltaics and biosensing.

This work is based on electromagnetic modelling, the development on theoretical models (based on the temporal coupled-mode theory in particular), and novel fabrication techniques. It is also based on high-resolution angular spectroscopy (VISIR setup).

Recent achievements:

  • λ³/1000 plasmonic nanocavities. Evidence of perfect absorption in tiny volumes, application to biosensing experiments.
  • Nearly Perfect Fano Transmission Resonances through Nanoslits Drilled in a Metallic Membrane.
  • Optical Extinction in a Single Layer of Nanorods
  • On-going projects:

  • Nano-antennas and metal nanostructures: LDOS measurements (radiative and non-radiative), effect of disorder.
  • Carrier cooling and short-time damping mechanisms in nano-antennas .
  • Optics of free-standing nanostructures.
  • Experimental determination of the complex reflection/transmission coefficient of slabs of artificial materials.
  • Partners:

  • Institut Langevin/ESPCI: Yannick De Wilde, Valentina Krachmalnicoff, Rémi Carminati, Gilles Tessier.
  • ONERA - Le centre français de recherche aérospatiale.
  • Politecnico di Milano: P. Biagioni, G. Cerullo.
  • Laboratoire Photonique, Numérique et Nanosciences (LP2N/IOGS): Philippe Lalanne
  • Laboratoire Charles Fabry (LCF/IOGS): Christophe Sauvan
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    Contacts

     Cattoni Andrea  (+33) 1 69 63 60 48  
     Collin Stephane  (+33) 1 69 63 61 45  

    Et aussi...

     Bardou Nathalie  (+33) 1 69 63 61 43  
     Dupuis Christophe  (+33) 1 69 63 61 42  

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