2006/06/02 by Pierre-Olivier Chapuis, Jean-Jacques Greffet, Karl Joulain +1
Engineering · Materials Science · Physics and Astronomy · #Thermal Radiation and Cooling Technologies #Thermal properties of materials #Thermoelastic and Magnetoelastic Phenomena #cond-mat.mtrl-sci
paper · pdf · doi:10.1088/0957-4484/17/12/026
published as Nanotechnology 17, 12 (2006) 2978-2981 · 4 pages
openalex publication_date 2006/06/02 · arxiv created 2008/02/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
We study quasi-ballistic heat transfer through air between a hot nanometre-scale tip and a sample. The hot tip/surface configuration is widely used to perform non-intrusive confined heating. Using a Monte Carlo simulation, we find that the thermal conductance reaches 0.8 MW m −2 K −1 on the surface under the tip and show the shape of the heat flux density distribution (nanometre-scale thermal spot). These results show that a surface can be efficiently heated locally without contact. The temporal resolution of the heat transfer is a few tens of picoseconds.