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dc.contributor.author
Depine, Ricardo Angel
dc.contributor.author
Lakhtakia, Akhlesh
dc.date.available
2019-04-05T15:15:02Z
dc.date.issued
2005-12
dc.identifier.citation
Depine, Ricardo Angel; Lakhtakia, Akhlesh; Diffraction gratings of isotropic negative-phase velocity materials; Elsevier Gmbh; Optik; 116; 1; 12-2005; 31-43
dc.identifier.issn
0030-4026
dc.identifier.uri
http://hdl.handle.net/11336/73264
dc.description.abstract
Diffraction of electromagnetic plane waves by the gratings made by periodically corrugating the exposed planar boundaries of homogeneous, isotropic, linear dielectric-magnetic half-spaces is examined. The phase velocity vector in the diffracting material can be either co-parallel or anti-parallel to the time-averaged Poynting vector, thereby allowing for the material to be classified as of either the positive- or the negative-phase velocity (PPV or NPV) type. Three methods used for analyzing dielectric gratings - the Rayleigh-hypothesis method, a perturbative approach, and the C formalism - are extended here to encompass NPV gratings by a careful consideration of field representation inside the refracting half-space. Corrugations of both symmetric as well as asymmetric shapes are studied, as also the diversity of grating response to the linear polarization states of the incident plane wave. The replacement of PPV grating by its NPV analog affects only nonspecular diffraction efficiencies when the corrugations are shallow, and the effect on specular diffraction efficiencies intensifies as the corrugations deepen. Whether the type of the refracting material is NPV or PPV is shown to affect surface wave propagation as well as resonant excitation of surface waves. © 2005 Elsevier GmbH. All rights reserved.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Gmbh
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Grating
dc.subject
Negative-Phase Velocity
dc.subject
Nonspecular Diffraction
dc.subject
Numerical Techniques
dc.subject
Surface Waves
dc.subject.classification
Astronomía
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Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Diffraction gratings of isotropic negative-phase velocity materials
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-27T18:17:43Z
dc.journal.volume
116
dc.journal.number
1
dc.journal.pagination
31-43
dc.journal.pais
Alemania
dc.journal.ciudad
berlin
dc.description.fil
Fil: Depine, Ricardo Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Lakhtakia, Akhlesh. Pennsylvania State University; Estados Unidos
dc.journal.title
Optik
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ijleo.2004.11.004
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