Slow-light vortices in periodic waveguides

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

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-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
Title of host publicationProceedings of Photonics West : Advances in Slow and Fast Light II
Number of pages8
PublisherSPIE - International Society for Optical Engineering
Publication date2009
Publication statusPublished - 2009
EventPhotonics West : Advances in Slow and Fast Light II - San Jose, CA, USA
Duration: 1 Jan 2009 → …


ConferencePhotonics West : Advances in Slow and Fast Light II
CitySan Jose, CA, USA
Period01/01/2009 → …
SeriesProceedings of SPIE, the International Society for Optical Engineering


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