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Light transmission through a circular metallic grating under broadband radial and azimuthal polarization illumination |
Optics Letters, Vol. 36, Issue 20, pp. 3972-3974 (2011)
http://dx.doi.org/10.1364/OL.36.003972
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Abstract
We studied the characteristics of a circular metallic grating illuminated by broadband radial and azimuthal polarizations. We demonstrated that this scenario is the cylindrical analogue of a one-dimensional Cartesian grating illuminated by TM and TE polarizations. We measured the transmission spectra of this structure and observed strong polarization selectivity and, specifically, a resonance for radial polarization excitation, indicating a strong coupling to surface plasmons. The structure may be attractive for applications where pure radial polarization is needed, such as tight focusing, material processing, and particle trapping.
© 2011 Optical Society of America
OCIS Codes
(120.7000) Instrumentation, measurement, and metrology : Transmission
(240.6680) Optics at surfaces : Surface plasmons
(260.5430) Physical optics : Polarization
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
ToC Category:
Physical Optics
History
Original Manuscript: July 13, 2011
Revised Manuscript: September 5, 2011
Manuscript Accepted: September 12, 2011
Published: October 5, 2011
Virtual Issues
Vol. 6, Iss. 11 Virtual Journal for Biomedical Optics
Citation
Gilad M. Lerman, Meir Grajower, Avner Yanai, and Uriel Levy, "Light transmission through a circular metallic grating under broadband radial and azimuthal polarization illumination," Opt. Lett. 36, 3972-3974 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-20-3972
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