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Comparison between theoretical and experimental scattering of an s-polarized electromagnetic wave by a two-dimensional obstacle on a surface

Abstract : The scattering of s-polarized electromagnetic waves by a two-dimensional scatterer upon a surface is considered. An integral approach previously reported is generalized in order to account for multilayer systems. In order to compare the theory with scattered-light measurements, we have fabricated two ribs upon a germanium substrate by means of a dry-etching technique. The height and width of the ribs are approximately 5 ,um. The ribs are separated by 15 Am, whereas the incident wavelength is 10.6 .tm. A good agreement is found between theory and experiment.
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Submitted on : Monday, October 16, 2017 - 2:34:16 PM
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Jean-Jacques Greffet, François-René Ladan. Comparison between theoretical and experimental scattering of an s-polarized electromagnetic wave by a two-dimensional obstacle on a surface. Journal of the Optical Society of America. A Optics, Image Science, and Vision, Optical Society of America, 1991, 8 (8), pp.1261 - 1261. ⟨10.1364/JOSAA.8.001261⟩. ⟨hal-01617297⟩

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