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Proceedings Paper

Coherent thermal source formed by periodic microcavities
Author(s): Nir Dahan; Avi Niv; Gabriel Biener; Yuri Gorodetski; Vladimir Kleiner; Erez Hasman
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Paper Abstract

An extraordinary coherent thermal emission from an anisotropic microstructure is experimentally and theoretically presented. The enhanced coherency is due to coherent coupling between resonant cavities obtained by surface standing waves, where each cavity supports a localized field that is attributed to coupled surface phonon-polaritons. We show that it is possible to obtain a polarized quasi-monochromatic thermal source from a SiC microstructure with a high quality factor Q ~ 600 at the resonant frequency of the cavity, and a spatial coherence length 760λ which corresponds to angular divergence of 1.3mrad.

Paper Details

Date Published: 6 February 2008
PDF: 5 pages
Proc. SPIE 6883, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics, 68830Y (6 February 2008); doi: 10.1117/12.768216
Show Author Affiliations
Nir Dahan, Technion-Israel Institute of Technology (Israel)
Avi Niv, Technion-Israel Institute of Technology (Israel)
Gabriel Biener, Technion-Israel Institute of Technology (Israel)
Yuri Gorodetski, Technion-Israel Institute of Technology (Israel)
Vladimir Kleiner, Technion-Israel Institute of Technology (Israel)
Erez Hasman, Technion-Israel Institute of Technology (Israel)

Published in SPIE Proceedings Vol. 6883:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics
Thomas J. Suleski; Winston V. Schoenfeld; Jian Jim Wang, Editor(s)

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