THE IMPEDANCE BOUNDARY-CONDITION FOR A CURVED SURFACE

被引:32
作者
GARCIAMOLINA, R [1 ]
MARADUDIN, AA [1 ]
LESKOVA, TA [1 ]
机构
[1] ACAD SCI USSR,INST SPECT,TROITSK 142092,USSR
来源
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS | 1990年 / 194卷 / 5-6期
关键词
D O I
10.1016/0370-1573(90)90034-Y
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We describe a systematic method for obtaining the impedance boundary condition for a p- or s-polarized electromagnetic field at the curved boundary between vacuum and a metal as an expansion in powers of the skin depth of the field in the metal. The surface is defined by the equation x3 = ζ(x1), and the plane of incidence is the x1x3-plane. The first three terms in this expansion are obtained, and the conditions under which the result is valid are discussed. The boundary condition obtained is used in a determination of the dispersion curves for surface polaritons propagating across a one-dimensional metallic grating. © 1990.
引用
收藏
页码:351 / 359
页数:9
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