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Contactless heat flux control with photonic devices
The ability to control electric currents in solids using diodes and
transistors is undoubtedly at the origin of the main developments in modern
electronics which have revolutionized the daily life in the second half of 20th
century. Surprisingly, until the year 2000 no thermal counterpart for such a
control had been proposed. Since then, based on pioneering works on the control
of phononic heat currents new devices were proposed which allow for the control
of heat fluxes carried by photons rather than phonons or electrons. The goal of
the present paper is to summarize the main advances achieved recently in the
field of thermal energy control with photons.Comment: Invited Revie
On Super-Planckian thermal emission in far field regime
We study, in the framework of the Landauer theory, the thermal emission in
far-field regime, of arbitrary indefinite planar media and finite size systems.
We prove that the flux radiated by the former is bounded by the blackbody
emission while, for the second, there is in principle, no upper limit
demonstrating so the possibility for a super-Planckian thermal emission with
finite size systems
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