Experiments show that the radiative heat transfer between two closely spaced parallel surfaces can be two to three orders of magnitude higher than Planck's law for the far field would predict.
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Change history
31 March 2016
After publication of this News & Views, the author wished to clarify a few technical points regarding the configurations of the surfaces, and to amend the figure accordingly. This piece has now been corrected in all versions.
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Nomura, M. The heat through the gap. Nature Nanotech 11, 496–497 (2016). https://doi.org/10.1038/nnano.2016.24
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DOI: https://doi.org/10.1038/nnano.2016.24
