Spectral impurity in gratings due to surface plasmon scattering

We compute the spectral distribution of energy obtained when a plane electromagnetic wave is scattered at a rough boundary between a vacuum and a metal. The boundary is constructed as the sum of two contributions: a perfectly periodic, sinusoidal roughness representing an ideal grating and a statist...

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Detalles Bibliográficos
Autores principales:	Brudny, Vera Leonor, Depine, Ricardo Angel
Publicado:	1991
Materias:	Light - Scattering Optical Gratings Physics - Solid State Diffuse Light Bands Surface Plasmon Scattering Surface Plasmons Electromagnetic Waves
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v82_n5-6_p420_Brudny http://hdl.handle.net/20.500.12110/paper_00304018_v82_n5-6_p420_Brudny
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00304018_v82_n5-6_p420_Brudny
record_format	dspace
spelling	paper:paper_00304018_v82_n5-6_p420_Brudny2023-06-08T14:56:07Z Spectral impurity in gratings due to surface plasmon scattering Brudny, Vera Leonor Depine, Ricardo Angel Light - Scattering Optical Gratings Physics - Solid State Diffuse Light Bands Surface Plasmon Scattering Surface Plasmons Electromagnetic Waves We compute the spectral distribution of energy obtained when a plane electromagnetic wave is scattered at a rough boundary between a vacuum and a metal. The boundary is constructed as the sum of two contributions: a perfectly periodic, sinusoidal roughness representing an ideal grating and a statistically varying roughness representing the defects of a real diffraction grating. We solve Maxwell's equations using Rayleigh expansions together with a surface impedance boundary condition, a procedure which restricts us to consider only highly conducting and shallow gratings. Our results show that when the magnetic field is parallel to the grooves, the plots of scattered light exhibit peaks that do not change their position with the angle of incidence. The angular position of the peaks conforms closely to the same law which governs the creation of a photon from a surface plasmon, a fact which seems to indicate that the peaks could correspond to a form of stray light known in the literature as surface plasmon scattering or diffuse light bands. © 1991. Fil:Brudny, V.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Depine, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1991 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v82_n5-6_p420_Brudny http://hdl.handle.net/20.500.12110/paper_00304018_v82_n5-6_p420_Brudny
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Light - Scattering Optical Gratings Physics - Solid State Diffuse Light Bands Surface Plasmon Scattering Surface Plasmons Electromagnetic Waves
spellingShingle	Light - Scattering Optical Gratings Physics - Solid State Diffuse Light Bands Surface Plasmon Scattering Surface Plasmons Electromagnetic Waves Brudny, Vera Leonor Depine, Ricardo Angel Spectral impurity in gratings due to surface plasmon scattering
topic_facet	Light - Scattering Optical Gratings Physics - Solid State Diffuse Light Bands Surface Plasmon Scattering Surface Plasmons Electromagnetic Waves
description	We compute the spectral distribution of energy obtained when a plane electromagnetic wave is scattered at a rough boundary between a vacuum and a metal. The boundary is constructed as the sum of two contributions: a perfectly periodic, sinusoidal roughness representing an ideal grating and a statistically varying roughness representing the defects of a real diffraction grating. We solve Maxwell's equations using Rayleigh expansions together with a surface impedance boundary condition, a procedure which restricts us to consider only highly conducting and shallow gratings. Our results show that when the magnetic field is parallel to the grooves, the plots of scattered light exhibit peaks that do not change their position with the angle of incidence. The angular position of the peaks conforms closely to the same law which governs the creation of a photon from a surface plasmon, a fact which seems to indicate that the peaks could correspond to a form of stray light known in the literature as surface plasmon scattering or diffuse light bands. © 1991.
author	Brudny, Vera Leonor Depine, Ricardo Angel
author_facet	Brudny, Vera Leonor Depine, Ricardo Angel
author_sort	Brudny, Vera Leonor
title	Spectral impurity in gratings due to surface plasmon scattering
title_short	Spectral impurity in gratings due to surface plasmon scattering
title_full	Spectral impurity in gratings due to surface plasmon scattering
title_fullStr	Spectral impurity in gratings due to surface plasmon scattering
title_full_unstemmed	Spectral impurity in gratings due to surface plasmon scattering
title_sort	spectral impurity in gratings due to surface plasmon scattering
publishDate	1991
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v82_n5-6_p420_Brudny http://hdl.handle.net/20.500.12110/paper_00304018_v82_n5-6_p420_Brudny
work_keys_str_mv	AT brudnyveraleonor spectralimpurityingratingsduetosurfaceplasmonscattering AT depinericardoangel spectralimpurityingratingsduetosurfaceplasmonscattering
_version_	1768545774473314304

Spectral impurity in gratings due to surface plasmon scattering

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