Enhanced coherency of thermal emission: Beyond the limitation imposed by delocalized surface waves

Nir Dahan, Avi Niv, Gabriel Biener, Yuri Gorodetski, Vladimir Kleiner, Erez Hasman

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

Is it possible to achieve thermal radiation excited by surface waves having a coherence length much larger than what one might anticipate from the behavior of surface waves on a flat interface? We demonstrate an extraordinary coherent thermal radiation from coupled resonant cavities; each of them supports standing wave surface polaritons. The coupling is implemented by surface standing waves between the cavities. As a result, the spatial coherence length is increased by an order of magnitude compared with that of delocalized surface waves.

Original languageEnglish
Article number045427
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume76
Issue number4
DOIs
StatePublished - 30 Jul 2007
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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