Do evanescent waves contribute to the far field?

被引：55

作者：

Wolf, E ^{[1
]}

Foley, JT

机构：

[1] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

[2] Univ Rochester, Rochester Theory Ctr Opt Sci & Engn, Rochester, NY 14627 USA

[3] Mississippi State Univ, Dept Phys & Astron, Mississippi State, MS 39762 USA

来源：

OPTICS LETTERS | 1998年 / 23卷 / 01期

关键词：

D O I：

10.1364/OL.23.000016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Evanescent waves have become of considerable interest in recent years because of developments in near-field optics. Claims have been made that such waves contribute to the radiation fields of sources and to the far fields of scatterers. me show, by considering a spherical scalar wave and a linear electric dipole field, that these claims are misleading and that such contributions are without physical consequences. Our conclusions apply to a much broader class of fields than those considered in this Letter. (C) 1998 Optical Society of America.

引用

页码：16 / 18

页数：3

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