Sheila Edalatpour

Near-field radiative heat transfer between arbitrarily shaped objects and a surface

A fluctuational electrodynamics-based formalism for calculating near-field radiative heat transfer between objects of arbitrary size and shape and an infinite surface is presented. The surface interactions are treated analytically via Sommerfelds theory of electric dipole radiation above an infinite plane. The volume integral equation for the electric field is discretized using the thermal discrete dipole approximation (T-DDA). The framework is verified against exact results in the sphere-surface configuration and is applied to analyze near-field radiative heat transfer between a complex-shaped probe and an infinite plane, both made of silica. It is found that, when the probe tip size is approximately equal to or smaller than the gap

Convergence analysis of the thermal discrete dipole approximation.

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Near-field thermal electromagnetic transport: An overview

separating the probe and the surface, coupled localized surface phonon (LSPh)-surface phonon-polariton (SPhP) mediated heat transfer occurs. In this regime, the net spectral heat rate exhibits four resonant modes due to LSPhs along the minor axis of the probe, while the net total heat rate in the near field follows a

Investigation of Size Effect on the Emissivity of Thin Films

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The Thermal Discrete Dipole Approximation (T-DDA) for near-field radiative heat transfer simulations in three-dimensional arbitrary geometries

power law. Conversely, when the probe tip size is much larger than the separation gap

Size effect on the emissivity of thin films

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Effect of phase transformation latent heat on prediction accuracy of strip laminar cooling

, heat transfer is mediated by SPhPs, resulting in two resonant modes in the net spectral heat rate, corresponding to those of a single emitting silica surface, while the net total heat rate approaches a

Near-field thermal electromagnetic transport

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Spectral redshift of the thermal near field scattered by a probe

power law. It is also demonstrated that a complex-shaped probe can be approximated by a prolate spheroidal electric dipole when the thermal wavelength is larger than the major axis of the spheroidal dipole and when the separation gap

Apparent spectral redshift of thermally generated surface phonon-polariton resonance mediated by a non-resonant film

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