A real diffraction grating is replaced by a coordinate-dependent surface impedance that is constructed as the sum of two contributions: a perfectly periodic contribution and a randomly varying contributon. Numerical results obtained with this model show the presence of diffuse light bands on the speckle pattern that constitutes the diffuse background of the spectrum. We emphasize the role played by the electromagnetic surface waves supported by this structure on the generation of the bands. © 1991 Taylor & Francis Ltd.
Documento: | Artículo |
Título: | Speckle patterns generated by rough surfaces with a periodic component |
Autor: | Depine, R.A.; Brudny, V.L. |
Filiación: | Laboratorio de Optica, Departamento de Física, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, Buenos Aires, 1428, Argentina |
Año: | 1991 |
Volumen: | 38 |
Número: | 11 |
Página de inicio: | 2281 |
Página de fin: | 2293 |
DOI: | http://dx.doi.org/10.1080/09500349114552331 |
Título revista: | Journal of Modern Optics |
Título revista abreviado: | J. Mod. Opt. |
ISSN: | 09500340 |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09500340_v38_n11_p2281_Depine |