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Blackbody spectrum revisited in the near field

Abstract : We report local spectra of the near-field thermal emission recorded by a Fourier transform infrared spectrometer, using a tungsten tip as a local scatterer coupling the near-field thermal emission to the far field. Spectra recorded on silicon carbide and silicon dioxide exhibit temporal coherence due to thermally excited surface waves. Finally, we evaluate the ability of this spectroscopy to probe the frequency dependence of the electromagnetic local density of states.
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Contributor : Jean-Jacques Greffet Connect in order to contact the contributor
Submitted on : Friday, May 10, 2013 - 4:35:26 PM
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Arthur Babuty, Karl Joulain, Pierre-Olivier Chapuis, Jean-Jacques Greffet, Yannick de Wilde. Blackbody spectrum revisited in the near field. Physical Review Letters, American Physical Society, 2013, 110 (14), pp.146103. ⟨10.1103/PhysRevLett.110.146103⟩. ⟨hal-00821535⟩



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