Tailoring thermal emission via Q matching of photonic crystal resonances
Author(s)
Ghebrebrhan, Michael; Bermel, Peter A.; Yeng, YiXiang; Soljacic, Marin; Celanovic, Ivan L.; Joannopoulos, John; ... Show more Show less
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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.
Date issued
2011-03Department
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 ElectronicsJournal
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
ISSN
1050-2947
1094-1622