Internal symmetries in conical diffraction from metallic gratings

Previous investigations in conical diffraction have shown that for a metallic grating illuminated under conditions of resonant excitation of surface plasmons, the maximum efficiency of polarization conversion is obtained when the plane of incidence forms an angle φ = 45° with the main section of the...

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Autores principales: Depine, R.A., Lester, M.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09500340_v48_n8_p1405_Depine
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spelling todo:paper_09500340_v48_n8_p1405_Depine2023-10-03T15:49:53Z Internal symmetries in conical diffraction from metallic gratings Depine, R.A. Lester, M. Computer simulation Dielectric materials Interfaces (materials) Light polarization Light propagation Lighting Magnetic permeability Metals Monochromators Permittivity Surface plasmon resonance Vectors Conical diffraction Internal symmetries Metallic gratings Polarization conversion Diffraction gratings Previous investigations in conical diffraction have shown that for a metallic grating illuminated under conditions of resonant excitation of surface plasmons, the maximum efficiency of polarization conversion is obtained when the plane of incidence forms an angle φ = 45° with the main section of the grating. This fact has been understood as a consequence of the evident symmetry imposed by the incident wave and it has not been questioned up to now. Here we show that, apart from this highly symmetrical configuration, the polarization conversion efficiency has local maxima also in other cases which do not exhibit such an evident symmetry. We demonstrate that the occurrence of both the local maxima for the new configurations and the maximum corresponding to φ = 45° are a consequence of internal symmetries imposed by the propagation direction of the resonantly excited surface plasmons. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09500340_v48_n8_p1405_Depine
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Computer simulation
Dielectric materials
Interfaces (materials)
Light polarization
Light propagation
Lighting
Magnetic permeability
Metals
Monochromators
Permittivity
Surface plasmon resonance
Vectors
Conical diffraction
Internal symmetries
Metallic gratings
Polarization conversion
Diffraction gratings
spellingShingle Computer simulation
Dielectric materials
Interfaces (materials)
Light polarization
Light propagation
Lighting
Magnetic permeability
Metals
Monochromators
Permittivity
Surface plasmon resonance
Vectors
Conical diffraction
Internal symmetries
Metallic gratings
Polarization conversion
Diffraction gratings
Depine, R.A.
Lester, M.
Internal symmetries in conical diffraction from metallic gratings
topic_facet Computer simulation
Dielectric materials
Interfaces (materials)
Light polarization
Light propagation
Lighting
Magnetic permeability
Metals
Monochromators
Permittivity
Surface plasmon resonance
Vectors
Conical diffraction
Internal symmetries
Metallic gratings
Polarization conversion
Diffraction gratings
description Previous investigations in conical diffraction have shown that for a metallic grating illuminated under conditions of resonant excitation of surface plasmons, the maximum efficiency of polarization conversion is obtained when the plane of incidence forms an angle φ = 45° with the main section of the grating. This fact has been understood as a consequence of the evident symmetry imposed by the incident wave and it has not been questioned up to now. Here we show that, apart from this highly symmetrical configuration, the polarization conversion efficiency has local maxima also in other cases which do not exhibit such an evident symmetry. We demonstrate that the occurrence of both the local maxima for the new configurations and the maximum corresponding to φ = 45° are a consequence of internal symmetries imposed by the propagation direction of the resonantly excited surface plasmons.
format JOUR
author Depine, R.A.
Lester, M.
author_facet Depine, R.A.
Lester, M.
author_sort Depine, R.A.
title Internal symmetries in conical diffraction from metallic gratings
title_short Internal symmetries in conical diffraction from metallic gratings
title_full Internal symmetries in conical diffraction from metallic gratings
title_fullStr Internal symmetries in conical diffraction from metallic gratings
title_full_unstemmed Internal symmetries in conical diffraction from metallic gratings
title_sort internal symmetries in conical diffraction from metallic gratings
url http://hdl.handle.net/20.500.12110/paper_09500340_v48_n8_p1405_Depine
work_keys_str_mv AT depinera internalsymmetriesinconicaldiffractionfrommetallicgratings
AT lesterm internalsymmetriesinconicaldiffractionfrommetallicgratings
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