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Photonic Crystals: Shaping the Flow of Thermal Radiation

Published online by Cambridge University Press:  31 January 2011

Ivan Čelanović ,
Michael Ghebrebrhan ,
Yi Xiang Yeng ,
John Kassakian ,
Marin Soljačić  and
John Joannopoulos
Ivan Čelanović
Affiliation:
ivanc@mit.edu, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States
Michael Ghebrebrhan
Affiliation:
mghebre@MIT.EDU, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States
Yi Xiang Yeng
Affiliation:
yxyeng@MIT.EDU, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States
John Kassakian
Affiliation:
jgk@mit.edu, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States
Marin Soljačić
Affiliation:
soljacic@MIT.EDU, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States
John Joannopoulos
Affiliation:
joannop@MIT.EDU, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States
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Abstract

In this paper we explore theory, design, and fabrication of photonic crystal (PhC) based selective thermal emitters. In particular, we focus on tailoring spectral and spatial properties by means of resonant enhancement in PhC's. Firstly, we explore narrow-band resonant thermal emission in photonic crystals exhibiting strong spectral and directional selectivity. We demonstrate two interesting designs based on resonant Q-matching: a vertical cavity enhanced resonant thermal emitter and 2D silicon PhC slab Fano-resonance based thermal emitter. Secondly, we examine the design of 2D tungsten PhC as a broad-band selective emitter. Indeed, based on the resonant cavity coupled resonant modes we demonstrate a highly selective, highly-spectrally efficient thermal emitter. We show that an emitter with a photonic cut-off anywhere from 1.8 μm to 2.5 μm can be designed.

Keywords

thin filmnanostructurephotovoltaic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1162: Symposium J – High-Temperature Photonic Structures , 2009 , 1162-J01-02
Copyright
Copyright © Materials Research Society 2009

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