Optical vortices at Fano resonances

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

doi:10.1364/OL.37.004985

Optical vortices at Fano resonances

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

Research output: Contribution to journal › Article

18 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	4985-4987
Number of pages	3
Journal	Optics Letters
Volume	37
Issue number	23
DOIs	https://doi.org/10.1364/OL.37.004985
Publication status	Published - Dec 1 2012
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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AB - 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.

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