Tailoring thermal emission via Q matching of photonic crystal resonances
Name
Ghebrebrhan-2011-Tailoring thermal em.pdf
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Author(s)
Ghebrebrhan, Michael
Bermel, Peter A.
Yeng, YiXiang
Soljacic, Marin
Celanovic, Ivan L.
Joannopoulos, John
Date Issued
March 2011
Journal
Physical Review A
Publisher
American Physical Society
Citation
Ghebrebrhan, M. et al. “Tailoring Thermal Emission via Q Matching of Photonic Crystal Resonances.” Physical Review A 83.3 (2011) ©2011 American Physical Society
Version
Final published version
Abstract
We develop a model for predicting the thermal emission spectrum of a two-dimensional metallic photonic crystal for arbitrary angles based on coupled-mode theory. Calculating the appropriate coupled-mode parameters over a range of geometrical parameters allows one to tailor the emissivity spectrum to a specific application. As an example, we design an emitter with a step-function cutoff suppressing long-wavelength emission, which is necessary for high-efficiency thermophotovoltaic systems. We also confirm the accuracy of the results of our model with finite-difference time-domain simulations.
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.83.033810
