Asymmetric conical diffraction and generation of non-integer phase singularities in photonic graphene

Daohong Song, Sheng Liu, Vassilis Paltoglou, Daniel Gallardo, Liqin Tang, Jingjun Xu, Nikolaos K. Efremidis, Zhigang Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We demonstrate asymmetric conical diffraction accompanied by pseudospin-mediated non-integer phase singularities when two sublattices of photonic graphene are equally excited near the Dirac points. Experimental and numerical results agree with analysis of the Dirac equation.

Original languageEnglish
Title of host publication2015 Conference on Lasers and Electro-Optics, CLEO 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781557529688
StatePublished - 10 Aug 2015
EventConference on Lasers and Electro-Optics, CLEO 2015 - San Jose, United States
Duration: 10 May 201515 May 2015

Publication series

NameConference on Lasers and Electro-Optics Europe - Technical Digest
Volume2015-August

Conference

ConferenceConference on Lasers and Electro-Optics, CLEO 2015
Country/TerritoryUnited States
CitySan Jose
Period10/05/1515/05/15

Keywords

  • Diffraction
  • Graphene
  • Lattices
  • Mathematical model
  • Optical vortices
  • Photonics
  • Physics

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