Scattering of electromagnetic waves from two-dimensional rough surfaces with an impedance approximation

被引：39
|
作者：
Soriano, G [1 ]
Saillard, M [1 ]
机构：
[1] Fac Sci & Tech St Jerome, Unite Propre Rech Enseignement Super A 6079, Lab Opt Electromagnet, F-13397 Marseille 20, France
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2001年 / 18卷 / 01期
关键词：
D O I：
10.1364/JOSAA.18.000124
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The sparse-matrix-flat-surface iterative approach has been implemented for perfectly conducting surfaces and modified to enhance convergence stability and speed for very rough surfaces. Monte Carlo simulations of backscattering enhancement using a beam decomposition technique are compared with millimeter-wave laboratory experimental data. Strong but finite conductivity for metals or thin skin depth for dielectrics is simulated by an impedance approximation. This gives rise to a nonhypersingular integral equation derived from the magnetic field integral equation. The effect of finite conductivity for a metal at visible wavelengths is shown. (C) 2001 Optical Society of America.
引用
收藏
页码：124 / 133
页数：10
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