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ANR Project PGP
Gap-Plasmon Physics

Members
Coordinator : Antoine Moreau

Emmanuel Centeno

Kofi Edee

Gérard Granet

Rémi Pollès

Post-docs:

Émilien Mallet

Students:

Caroline Lemaître

Rabih Ajib


Collaborators
CMIP, Duke University Nachos TEAM, INRIA Sophia-Antipolis Dyno Team, Université de Strasbourg Nanophotochemistry team, LNIO, UTT

Presentation

The PGP Project is a "Young Researcher" project funded by the French National Research Agency.

We want to study how light propagates in extremely thin metallic waveguides (typically a less than 10 nanometer thick dielectric between two metals). The mode that is guided in such a structure is slow. It presents a very low wavelength, which has two main effects: it allows to design resonators that are very small compared to the wavelength, very sensitive and that concentrate light very effectively; the interaction between electrons inside the metal has a measurable effect on the gap-plasmon, influencing the behavior of the structure. These are the two aspects the projects is aimed to explore.

Figure: Left, the gap-plasmon propagation constant (the higher the constant, the slower the mode), showing the difference between the classical theory (blue, based on the Drude model) and the nonlocal theory (green). Center: Cavity resonances that can be excited under a patch placed above a metallic film. Right: Nanocubes deposited on a gold surface behave as resonators that can absorb light very efficiently.

Codes

Many codes will be published here during the project (for instance those based on Moosh).

Publications/preprints

First results

Here are the papers the project is based on: