Weyl exceptional ring in a helical waveguide array

Alexander Cerjan, Sheng Huang, Kevin P. Chen, Yidong Chong, Mikael C. Rechtsman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We demonstrate the existence of a topologically charged contour consisting entirely of exceptional points in a non-Hermitian helical waveguide array. We observe both protected chiral edge states and the lack of conical diffraction.

Original languageEnglish (US)
Title of host publication2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781943580422
StatePublished - Aug 6 2018
Event2018 Conference on Lasers and Electro-Optics, CLEO 2018 - San Jose, United States
Duration: May 13 2018May 18 2018

Publication series

Name2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings

Other

Other2018 Conference on Lasers and Electro-Optics, CLEO 2018
CountryUnited States
CitySan Jose
Period5/13/185/18/18

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All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

Cite this

Cerjan, A., Huang, S., Chen, K. P., Chong, Y., & Rechtsman, M. C. (2018). Weyl exceptional ring in a helical waveguide array. In 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings [8426604] (2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc..