Recent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications

In recent years, new functionality and unprecedented wavefront control has been enabled by the introduction of bianisotropic metasurfaces. A bianisotropic metasurface is characterized by an electric response, a magnetic response, and an electro-magnetic/magneto-electric response. In general, these m...

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Autores principales:	Budhu Jordan, Grbic Anthony
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	bianisotropic generalized sheet transition conditions gstc metasurface Physics QC1-999
Acceso en línea:	https://doaj.org/article/50d1bfd4ad1e48b297d5a1b02ef0cf8c
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spelling	oai:doaj.org-article:50d1bfd4ad1e48b297d5a1b02ef0cf8c2021-12-05T14:10:56ZRecent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications2192-861410.1515/nanoph-2021-0401https://doaj.org/article/50d1bfd4ad1e48b297d5a1b02ef0cf8c2021-10-01T00:00:00Zhttps://doi.org/10.1515/nanoph-2021-0401https://doaj.org/toc/2192-8614In recent years, new functionality and unprecedented wavefront control has been enabled by the introduction of bianisotropic metasurfaces. A bianisotropic metasurface is characterized by an electric response, a magnetic response, and an electro-magnetic/magneto-electric response. In general, these metasurfaces consists of an array of metallic or dielectric particles located within a subwavelength thick host medium, and are approximated and modeled as infinitely-thin, idealized sheet boundaries defined along a surface. An appropriate sheet boundary condition which effectively models the tangential field discontinuity due to the array of magnetoelectric inclusions is the Generalized Sheet Transition Condition or GSTC. Several forms of the GSTC appear in literature. Here, we present each interpretation and show how they are related. Synthesis approaches unique to each form are overviewed. By utilizing the GSTC in metasurface design, new possibilities emerge which are not possible with conventional design techniques incorporating only electric or only magnetic responses. Since the metasurfaces are designed using bianisotropic boundary conditions, they must be realized using particles which contain magnetoelectric responses. This review article discusses the design of metasurfaces using the GSTC, and the bianisotropic particles used to realize GSTC’s. Further, it discusses new and recent applications that have emerged due to bianisotropy, and future prospects in metasurface design using bianisotropic boundary conditions. The intent is to provide a comprehensive overview of metasurface design involving bianisotropy and for this review article to serve as a starting point for engineers and scientist that wish to introduce bianisotropy into metasurface design.Budhu JordanGrbic AnthonyDe Gruyterarticlebianisotropicgeneralized sheet transition conditionsgstcmetasurfacePhysicsQC1-999ENNanophotonics, Vol 10, Iss 16, Pp 4075-4112 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bianisotropic generalized sheet transition conditions gstc metasurface Physics QC1-999
spellingShingle	bianisotropic generalized sheet transition conditions gstc metasurface Physics QC1-999 Budhu Jordan Grbic Anthony Recent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications
description	In recent years, new functionality and unprecedented wavefront control has been enabled by the introduction of bianisotropic metasurfaces. A bianisotropic metasurface is characterized by an electric response, a magnetic response, and an electro-magnetic/magneto-electric response. In general, these metasurfaces consists of an array of metallic or dielectric particles located within a subwavelength thick host medium, and are approximated and modeled as infinitely-thin, idealized sheet boundaries defined along a surface. An appropriate sheet boundary condition which effectively models the tangential field discontinuity due to the array of magnetoelectric inclusions is the Generalized Sheet Transition Condition or GSTC. Several forms of the GSTC appear in literature. Here, we present each interpretation and show how they are related. Synthesis approaches unique to each form are overviewed. By utilizing the GSTC in metasurface design, new possibilities emerge which are not possible with conventional design techniques incorporating only electric or only magnetic responses. Since the metasurfaces are designed using bianisotropic boundary conditions, they must be realized using particles which contain magnetoelectric responses. This review article discusses the design of metasurfaces using the GSTC, and the bianisotropic particles used to realize GSTC’s. Further, it discusses new and recent applications that have emerged due to bianisotropy, and future prospects in metasurface design using bianisotropic boundary conditions. The intent is to provide a comprehensive overview of metasurface design involving bianisotropy and for this review article to serve as a starting point for engineers and scientist that wish to introduce bianisotropy into metasurface design.
format	article
author	Budhu Jordan Grbic Anthony
author_facet	Budhu Jordan Grbic Anthony
author_sort	Budhu Jordan
title	Recent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications
title_short	Recent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications
title_full	Recent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications
title_fullStr	Recent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications
title_full_unstemmed	Recent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications
title_sort	recent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/50d1bfd4ad1e48b297d5a1b02ef0cf8c
work_keys_str_mv	AT budhujordan recentadvancesinbianisotropicboundaryconditionstheorycapabilitiesrealizationsandapplications AT grbicanthony recentadvancesinbianisotropicboundaryconditionstheorycapabilitiesrealizationsandapplications
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Recent advances in bianisotropic boundary conditions: theory, capabilities, realizations, and applications

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