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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 22 — Nov. 15, 2013
  • pp: 4876–4879

Strong three-dimensional field localization and enhancement on deep sinusoidal gratings with two-dimensional periodicity

Evgeny Popov, Jerome Wenger, John Hoose, and Svetlen Tonchev  »View Author Affiliations


Optics Letters, Vol. 38, Issue 22, pp. 4876-4879 (2013)
http://dx.doi.org/10.1364/OL.38.004876


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Abstract

The study of total light absorption due to excitation of localized surface plasmons on deep metallic crossed gratings having a sinusoidal profile with a two-dimensional periodicity shows a very strong increase in the electric field intensity, reaching 800 times the incident intensity. The region with high intensity is strongly localized at the groove top and is characterized by a volume much smaller than the diffraction limit, both in transverse direction along the grating plane, and in longitudinal direction when going away from the grating surface. The field enhancement and its localization are much more pronounced than in shallow gratings.

© 2013 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(240.6680) Optics at surfaces : Surface plasmons
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

History
Original Manuscript: August 5, 2013
Manuscript Accepted: October 17, 2013
Published: November 14, 2013

Citation
Evgeny Popov, Jerome Wenger, John Hoose, and Svetlen Tonchev, "Strong three-dimensional field localization and enhancement on deep sinusoidal gratings with two-dimensional periodicity," Opt. Lett. 38, 4876-4879 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-22-4876

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