Optical vortices at Fano resonances

Yi Xu, Andrey E. Miroshnichenko, Anton S. Desyatnikov

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


We study the transmission properties of a one-dimensional array with intersite side-coupled defect and demonstrate that, as the system undergoes sharp Fano resonance, it exhibits geometry-induced vorticity of the energy flux. The optical vortex inverts its handedness at the Fano resonance, revealing a strong link between two phenomena, both being of interference origin. Our approach is quite general and can be applied to a variety of systems; as an example we demonstrate a similar effect in photonic crystal structure.

Original languageEnglish
Pages (from-to)4985-4987
Number of pages3
JournalOptics Letters
Issue number23
Publication statusPublished - Dec 1 2012
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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