期刊
PHYSICAL REVIEW B
卷 85, 期 16, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.85.165104
关键词
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资金
- Army Research Office through the Institute for Soldier Nanotechnologies [W911NF-07-D-0004]
- Defense Advanced Research Project Agency [N66001-09-1-2070-DOD]
- Deutsche Forschungsgemeinschaft [KR 3844/1-1]
We develop a general numerical method to calculate the nonequilibrium radiative heat transfer between a plate and compact objects of arbitrary shapes, making the first accurate theoretical predictions for the total heat transfer and the spatial heat flux profile for three-dimensional compact objects including corners or tips. In contrast to the known sphere-plate heat transfer, we find qualitatively different scaling laws for cylinders and cones at small separations, and, in contrast to a flat or slightly curved object, a sharp cone exhibits a local minimum in the spatially resolved heat flux directly below the tip. Our results may have important implications for near-field thermal writing and surface roughness.
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