Tomography of near-field radiative heat exchange between mesoscopic bodies immersed in a thermal bath
arxiv(2024)
摘要
A tomographic study of near-field radiative heat exchanges between a
mesoscopic object and a substrate immersed in a thermal bath is carried out
within the theoretical framework of fluctuational electrodynamics. By using the
discrete-dipole-approximation method, we compute the power density distribution
for radiative exchanges and highlight the major role played by many-body
interactions in these transfers. Additionally, we emphasize the close
relationship between power distribution and eigenmodes within the solid paving
the way to applications for hot-spot targeting at deep sub-wavelength scale by
shape optimization.
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