Abstracts Book - IMRC 2018

• SC6-O015 Invited Talk
SURFACE-MODE-ASSISTED AMPLIFICATION OF RADIATIVE HEAT
TRANSFER BETWEEN NANOPARTICLES
Riccardo Messina 1
1 CNRS, Laboratoire Charles Fabry, CNRS and IOGS, France.
We show that the radiative heat flux between two nanoparticles (described
within the dipole approximation) is amplified when they are placed in proximity
of a planar substrate supporting a surface resonance. The amplification factor
goes beyond two orders of magnitude in the case of dielectric nanoparticles,
whereas it is lower in the case of metallic nanoparticles. We analyze how the
effect depends on the frequency and on the particles--surface distance, by
clearly identifying the signature of the surface mode producing the
amplification. Finally, we show how the presence of a graphene sheet on top of
the substrate can modify the effect, by making an amplification of two orders of
magnitude possible also in the case of metallic nanoparticles.
Keywords: Radiative heat transfer, Near field, Fluctuational electrodynamics
Presenting authors email: riccardo.messina@institutoptique.fr