Spatial coherence of thermal near fields - Axe Physique des Transferts Accéder directement au contenu
Article Dans Une Revue Optics Communications Année : 2000

Spatial coherence of thermal near fields

Résumé

We analyze the spatial coherence of the electromagnetic field emitted by a half-space at temperature T close to the interface. An asymptotic analysis allows to identify three different contributions to the cross-spectral density tensor in the near-field regime: thermally excited surface waves, skin-layer currents and small-scale polarization fluctuations. It is shown that the coherence length can be either much larger or much shorter than the wavelength depending on the dominant contribution.

Dates et versions

hal-01625018 , version 1 (27-10-2017)

Identifiants

Citer

C. Henkel, K. Joulain, R. Carminati, J.-J. Greffet. Spatial coherence of thermal near fields. Optics Communications, 2000, 186 (1-3), pp.57 - 67. ⟨10.1016/S0030-4018(00)01048-8⟩. ⟨hal-01625018⟩
36 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More