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Theoretical studies of the enhanced backscattering of light from one-dimensional randomly rough metal surfaces by the use of a nonlocal impedance boundary condition

Author

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  • Maradudin, A.A.
  • Méndez, E.R.

Abstract

Nonlocal impedance boundary conditions for p- and s-polarized electromagnetic fields at the curved interface between vacuum and a metal, defined by the equation x3 = ζ(x1), when the plane of incidence is the x1x3-plane, are derived. The conditions for the validity of a local impedance boundary condition are established. The results are used in computer simulation studies of the scattering of infrared and visible light from a large rms height, large rms slope, one-dimensional, randomly rough, metal surface. It is shown, by comparison with the results of formally exact simulations, that the use of a local impedance boundary condition, even for light in the visible region of the optical spectrum, yields accurate results with a significant saving of computational time.

Suggested Citation

  • Maradudin, A.A. & Méndez, E.R., 1994. "Theoretical studies of the enhanced backscattering of light from one-dimensional randomly rough metal surfaces by the use of a nonlocal impedance boundary condition," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 207(1), pages 302-314.
    • Handle: RePEc:eee:phsmap:v:207:y:1994:i:1:p:302-314
    DOI: 10.1016/0378-4371(94)90388-3
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