Direct imaging of isofrequency contours in photonic structures
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Direct imaging.pdf
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Author(s)
Hsu, C. W.
Regan, Emma
Igarashi, Yuichi
Zhen, Bo
Kaminer, Ido Efraim
Shen, Yichen
Joannopoulos, John
Soljacic, Marin
Date Issued
November 2016
Journal
Science Advances
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Regan, E. C.; Igarashi, Y.; Zhen, B.; Kaminer, I.; Hsu, C. W.; Shen, Y.; Joannopoulos, J. D. and Soljacic, M. “Direct Imaging of Isofrequency Contours in Photonic Structures.” Science Advances 2, no. 11 (November 25, 2016): e1601591–e1601591. © 2016 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science (AAAS)
Version
Final published version
Abstract
The isofrequency contours of a photonic crystal are important for predicting and understanding exotic optical phenomena that are not apparent from high-symmetry band structure visualizations. We demonstrate a method to directly visualize the isofrequency contours of high-quality photonic crystal slabs that show quantitatively good agreement with numerical results throughout the visible spectrum. Our technique relies on resonance-enhanced photon scattering from generic fabrication disorder and surface roughness, so it can be applied to general photonic and plasmonic crystals or even quasi-crystals. We also present an analytical model of the scattering process, which explains the observation of isofrequency contours in our technique. Furthermore, the isofrequency contours provide information about the characteristics of the disorder and therefore serve as a feedback tool to improve fabrication processes.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Creative Commons Attribution-NonCommercial 4.0 International
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DOI of Published Version
https://doi.org/10.1126/sciadv.1601591
