Slow-light vortices in periodic waveguides

Audrey A. Sukhorukov, Sangwoo Ha, Anton S. Desyatnikov, Andrei V. Lavrinenko, Yuri S. Kivshar

Research output: Contribution to journalConference articlepeer-review


We reveal that the reduction of the group velocity of light in periodic waveguides is generically associated with the presence of vortex energy flows. We show that the energy flows are gradually frozen for slow-light at the Brillouin zone edge, whereas vortices persist for slow-light states having non-vanishing phase velocity inside the Brillouin zone. We also demonstrate that presence of vortices can be linked to the absence of slow-light at the zone edge, and present calculations illustrating these general results.

Original languageEnglish
Article number72260T
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2009
EventAdvances in Slow and Fast Light II - San Jose, CA, United States
Duration: Jan 25 2009Jan 27 2009


  • Photonic crystal
  • Slow-light
  • Vortex

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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