Spawning rings of exceptional points out of Dirac cones

Bo Zhen (), Chia Wei Hsu (), Yuichi Igarashi, Ling Lu, Ido Kaminer, Adi Pick, Song-Liang Chua, John D. Joannopoulos and Marin Soljačić
Additional contact information
Bo Zhen: Research Laboratory of Electronics, Massachusetts Institute of Technology
Chia Wei Hsu: Research Laboratory of Electronics, Massachusetts Institute of Technology
Yuichi Igarashi: Research Laboratory of Electronics, Massachusetts Institute of Technology
Ling Lu: Research Laboratory of Electronics, Massachusetts Institute of Technology
Ido Kaminer: Research Laboratory of Electronics, Massachusetts Institute of Technology
Adi Pick: Research Laboratory of Electronics, Massachusetts Institute of Technology
Song-Liang Chua: DSO National Laboratories
John D. Joannopoulos: Research Laboratory of Electronics, Massachusetts Institute of Technology
Marin Soljačić: Research Laboratory of Electronics, Massachusetts Institute of Technology

Nature, 2015, vol. 525, issue 7569, 354-358

Abstract: Exceptional points are singularities in non-Hermitian systems that can produce unusual effects, and it is shown that a Dirac cone in a photonic crystal can generate a continuous ring of exceptional points through flattening the tip of the cone.

Date: 2015
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DOI: 10.1038/nature14889

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