Plasmonic resonance scattering from silver nanowire illuminated by tightly focused singular beam
Optics Letters, Vol. 35, Issue 16, pp. 2729-2731 (2010)
http://dx.doi.org/10.1364/OL.35.002729
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Abstract
We investigate scattering features of tightly focused singular beams by placing a cylindrical nanowire in the vicinity of a line phase singularity. Applying an illumination wavelength corresponding to silver cylinder plasmonic resonance, we compare the scattering response with that of a perfect conductor. The rigorous modeling employs a 2D version of the Richards–Wolf focusing method and the source model technique. It is found that a cylinder with a plasmonic resonance produces a strong scattering response by deflecting the power flow toward the optical singularity region, where otherwise the power approaches zero.
© 2010 Optical Society of America
OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(290.5850) Scattering : Scattering, particles
(050.4865) Diffraction and gratings : Optical vortices
ToC Category:
Scattering
History
Original Manuscript: May 24, 2010
Manuscript Accepted: July 2, 2010
Published: August 10, 2010
Virtual Issues
Vol. 5, Iss. 13 Virtual Journal for Biomedical Optics
Citation
Alexander Normatov, Boris Spektor, Yehuda Leviatan, and Joseph Shamir, "Plasmonic resonance scattering from silver nanowire illuminated by tightly focused singular beam," Opt. Lett. 35, 2729-2731 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-16-2729
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