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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 15, Iss. 7 — Jul. 1, 1998
  • pp: 1886–1890

Localization of surface plasmon waves on the surface of a random rough metallic grating

H. Ogura, Z. L. Wang, and Y. Sasakura  »View Author Affiliations


JOSA A, Vol. 15, Issue 7, pp. 1886-1890 (1998)
http://dx.doi.org/10.1364/JOSAA.15.001886


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Abstract

Random wave fields on the surface of a random rough metallic grating are investigated with the stochastic functional approach. For Bragg incidence the fields are expanded as the harmonics of the central spatial frequency of the grating with stochastic amplitudes that are numerically calculated by a discretized approximation that is valid for a wider spectrum than the one treated in a preceding paper [Ogura, Opt. Commun. 134, 1 (1997)]. It is demonstrated that the wave localization is caused by the random roughness of the surface rather than by the surface shape-dependent resonances.

© 1998 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(030.1670) Coherence and statistical optics : Coherent optical effects
(050.2770) Diffraction and gratings : Gratings
(240.6680) Optics at surfaces : Surface plasmons
(290.5880) Scattering : Scattering, rough surfaces

History
Original Manuscript: November 18, 1997
Revised Manuscript: March 16, 1998
Manuscript Accepted: March 17, 1998
Published: July 1, 1998

Citation
H. Ogura, Z. L. Wang, and Y. Sasakura, "Localization of surface plasmon waves on the surface of a random rough metallic grating," J. Opt. Soc. Am. A 15, 1886-1890 (1998)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-15-7-1886

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