Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

High-order perturbation theory for light scattering from a rough metal surface

Not Accessible

Your library or personal account may give you access

Abstract

The angular distribution of the mean diffuse intensity scattered from a metal surface with one-dimensional roughness is studied with perturbation theory. From an approach based on the reduced Rayleigh equations in p polarization, exact perturbation terms up to eighth order in the height parameter are developed for surface roughness consistent with a stationary Gaussian process. The theory is evaluated for a number of cases in which surface plasmon polariton excitation is significant and produces effects such as backscattering enhancement. For surface roughness having a wide Gaussian power spectrum, it is found that the high-order terms lead to roughness-induced broadening of the backscattering peak. For rectangular spectra, two cases are studied in which backscattering effects are due to sixth- and eighth-order terms; both cases provide good comparisons with previously unexplained experimental results. Further, because of an eighth-order term, the diffuse intensity is shown to contain a specular peak that also relies on polariton excitation. This new effect is studied in detail and is found to arise from the constructive interference of contributions produced by multiple-scattering processes, although the time-reversed paths that produce backscattering enhancement are not essential to the specular effect.

© 2001 Optical Society of America

Full Article  |  PDF Article
More Like This
Enhanced specular peaks in diffuse light scattering from weakly rough metal surfaces

K. A. O’Donnell and E. R. Méndez
J. Opt. Soc. Am. A 20(12) 2338-2346 (2003)

Resonant light scattering from weakly rough random surfaces and imperfect gratings

T. R. Michel
J. Opt. Soc. Am. A 11(6) 1874-1885 (1994)

Comparisons of theory and experiment in light scattering from a randomly rough surface

M. E. Knotts, T. R. Michel, and K. A. O’Donnell
J. Opt. Soc. Am. A 10(5) 928-941 (1993)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (67)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved