Journal
NANOTECHNOLOGY
Volume 17, Issue 12, Pages 2978-2981Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/17/12/026
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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.
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