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

doi:10.1103/PhysRevB.76.045427

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 journal › Article › peer-review

100 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 language	English
Article number	045427
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	76
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.76.045427
State	Published - 30 Jul 2007
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.76.045427

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AU - Gorodetski, Yuri

AU - Kleiner, Vladimir

AU - Hasman, Erez

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AB - 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.

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

Abstract

ASJC Scopus subject areas

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