Pérez Madrid, AgustínLapas, Luciano CalheirosRubí Capaceti, José Miguel2014-03-112014-03-112013-03-181932-6203https://hdl.handle.net/2445/51225Radiative heat exchange at the nanoscale presents a challenge for several areas due to its scope and nature. Here, we provide a thermokinetic description of microscale radiative energy transfer including phonon-photon coupling manifested through a non-Debye relaxation behavior. We show that a lognormal-like distribution of modes of relaxation accounts for this non-Debye relaxation behavior leading to the thermal conductance. We also discuss the validity of the fluctuation-dissipation theorem. The general expression for the thermal conductance we obtain fits existing experimental results with remarkable accuracy. Accordingly, our approach offers an overall explanation of radiative energy transfer through micrometric gaps regardless of geometrical configurations and distances.6 p.application/pdfengcc-by (c) Pérez Madrid, Agustín et al., 2013http://creativecommons.org/licenses/by/3.0/esTermodinàmica del desequilibriNanoestructuresTeoria quànticaPropietats tèrmiquesAbsorció de calorTransferència d'energiaEntropiaFotonsNonequilibrium thermodynamicsNanostructuresQuantum theoryThermal propertiesHeat absorptionEnergy transferEntropyPhotonsinfo:eu-repo/semantics/article6217122014-03-11info:eu-repo/semantics/openAccess23527019