5 papers
Near-field Dressing of Thermal Emission
Victor Guillemot, Raphael Mol, Riccardo Messina +4
Radiative heat transfer at subwavelength distances is generally understood as enhanced energy exchange mediated by photon tunnelling between neighboring bodies. While near-field in…
Many-Body Floquet Theory for Radiative Heat Transfer in Time-Modulated Systems
Riccardo Messina, Philippe Ben-Abdallah
We develop a general theory of radiative heat exchange between dipoles with time-modulated optical properties. This framework extends fluctuational electrodynamics beyond equilibri…
Near-field focusing and amplification of tip-substrate radiative heat transfer
Milo Vescovo, Philippe Ben-Abdallah, Riccardo Messina
The spatially resolved near-field radiative heat transfer between a nanoscale probe and a substrate is studied in the fluctuational electrodynamics framework within the dipolar app…
Broadband directional thermal emission with anisothermal microsources
Florian Herz, Riccardo Messina, Philippe Ben-Abdallah
Thermal emission is naturally spatially incoherent and lacks directionality. Here, we demonstrate that by precisely controlling the spatial temperature distribution within a solid,…
Non-monotonic radiative heat transfer in the transition from far field to near field
Victor Guillemot, Riccardo Messina, Valentina Krachmalnicoff +4
We present high precision measurements of the radiative heat transfer of a glass microsphere immersed in a thermal bath in vacuum facing three different planar substrates (SiO2, Si…