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Optical vortices at Fano resonances |
Optics Letters, Vol. 37, Issue 23, pp. 4985-4987 (2012)
http://dx.doi.org/10.1364/OL.37.004985
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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.
© 2012 Optical Society of America
OCIS Codes
(050.4865) Diffraction and gratings : Optical vortices
(050.5298) Diffraction and gratings : Photonic crystals
(290.5825) Scattering : Scattering theory
ToC Category:
Scattering
History
Original Manuscript: October 16, 2012
Manuscript Accepted: November 5, 2012
Published: November 30, 2012
Citation
Yi Xu, Andrey E. Miroshnichenko, and Anton S. Desyatnikov, "Optical vortices at Fano resonances," Opt. Lett. 37, 4985-4987 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-23-4985
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