Shape-dependence of near-field heat transfer between a spheroidal nanoparticle and a flat surface
Mesoscale and Nanoscale Physics
2015-05-27 v1
Abstract
We study the radiative heat transfer between a spheroidal metallic nanoparticle and a planar metallic sample for near- and far-field distances. In particular, we investigate the shape dependence of the heat transfer in the near-field regime. In comparison with spherical particles, the heat transfer typically varies by factors between 1/2 and 2 when the particle is deformed such that its volume is kept constant. These estimates help to quantify the deviation of the actual heat transfer recorded by a near-field scanning thermal microscope from the value provided by a dipole model which assumes a perfectly spherical sensor.
Keywords
Cite
@article{arxiv.1103.5039,
title = {Shape-dependence of near-field heat transfer between a spheroidal nanoparticle and a flat surface},
author = {Oliver Huth and Felix Rüting and Svend-Age Biehs and Martin Holthaus},
journal= {arXiv preprint arXiv:1103.5039},
year = {2015}
}