4.8 Article

Blackbody Spectrum Revisited in the Near Field

Journal

PHYSICAL REVIEW LETTERS
Volume 110, Issue 14, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.146103

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Funding

  1. French National Research Agency [ANR-07-NANO-039]
  2. Region Ile-de-France in the framework of C'Nano IdF (nano-science competence center of Paris Region)
  3. LABEX WIFI (Laboratory of Excellence within the French Program Investments for the Future) [ANR-10-IDEX-0001-02 PSL]

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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. DOI: 10.1103/PhysRevLett.110.146103

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