Reflection, Diffraction and Scattering at Low Grazing Angle of Incidence: Regular and Random Systems
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概要
- 論文の詳細を見る
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and Its Application)Category: INVITEDWhen a monochromatic electromagnetic plane wave is incident on an infinitely extending surface with the translation invariance property, a curious phenomenon often takes place at a low grazing angle of incidence, at which the total wave field vanishes and a dark shadow appears. This paper looks for physical and mathematical reasons why such a shadow occurs. Three cases are considered: wave reflection by a flat interface between two media, diffraction by a periodic surface, and scattering from a homogeneous random surface. Then, it is found that, when a translation invariant surface does not support guided waves (eigen functions) propagating with real propagation constants, such the shadow always takes place, because the primary excitation disappears at a low grazing angle of incidence. At the same time, a shadow form of solution is proposed. Further, several open problems are given for future works.
- The Institute of Electronics,Information and Communication Engineersの論文
- 2011-01-01
著者
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NAKAYAMA Junichi
Kyoto Institute of Technology
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Nakayama Junichi
Kyoto Inst. Of Technol. Kyoto‐shi Jpn
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Junichi NAKAYAMA
Kyoto Institute of Technology
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