Multimode One-Way Waveguides of Large Chern Numbers
Name
PhysRevLett.113.113904.pdf
Size
1 MB
Format
Adobe PDF
Checksum (MD5)
db11a6ff65de62131fc8b30a639fb1a6
Author(s)
Skirlo, Scott A.
Lu, Ling
Soljacic, Marin
Date Issued
September 2014
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Skirlo, Scott A., Ling Lu, and Marin Soljacic. “Multimode One-Way Waveguides of Large Chern Numbers.” Physical Review Letters 113, no. 11 (September 2014). © 2014 American Physical Society
Version
Final published version
Abstract
Current experimental realizations of the quantum anomalous Hall phase in both electronic and photonic systems have been limited to a Chern number of one. In photonics, this corresponds to a single-mode one-way edge waveguide. Here, we predict quantum anomalous Hall phases in photonic crystals with large Chern numbers of 2, 3, and 4. These new topological phases were found by simultaneously gapping multiple Dirac and quadratic points. We demonstrate a continuously tunable power splitter as a possible application of multimode one-way waveguides. All our findings are readily realizable at microwave frequencies.
MIT Department
Massachusetts Institute of Technology. Materials Processing Center
Massachusetts Institute of Technology. Department of Physics
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/PhysRevLett.113.113904
