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Angular momentum properties of electromagnetic field transmitted through holey plasmonic vortex lenses |
Optics Letters, Vol. 37, Issue 15, pp. 3234-3236 (2012)
http://dx.doi.org/10.1364/OL.37.003234
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Abstract
We performed three-dimensional finite elements simulations of the optical response of holey plasmonic vortex lenses, i.e., spiral grooves milled on a thin gold film with a hole at the center. We focus in particular on the properties of the wave transmitted in the underlying half-space, which is shown to be a relevant part of the transmitted field. We find out that the angular momentum selection rule for this part of the field is different from the one for the transmitted plasmonic vortex, although closely related to the plasmonic interaction of the impinging wave with the chiral geometry.
© 2012 Optical Society of America
OCIS Codes
(230.5440) Optical devices : Polarization-selective devices
(240.6680) Optics at surfaces : Surface plasmons
(050.4865) Diffraction and gratings : Optical vortices
(250.5403) Optoelectronics : Plasmonics
(260.6042) Physical optics : Singular optics
ToC Category:
Physical Optics
History
Original Manuscript: May 9, 2012
Revised Manuscript: June 19, 2012
Manuscript Accepted: June 28, 2012
Published: July 27, 2012
Citation
Pierfrancesco Zilio, Elettra Mari, Giuseppe Parisi, Fabrizio Tamburini, and Filippo Romanato, "Angular momentum properties of electromagnetic field transmitted through holey plasmonic vortex lenses," Opt. Lett. 37, 3234-3236 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-15-3234
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