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Surface-Impedance Formulation for Hollow-Core Waveguides Based on Subwavelength Gratings

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Surface-Impedance Formulation for Hollow-Core Waveguides Based on Subwavelength Gratings

dc.contributor.author	Coves Soler, Ángela
dc.contributor.author	Maestre, Haroldo
dc.contributor.author	Archilés, Raimon
dc.contributor.author	Andrés, Miguel V.
dc.contributor.author	Gimeno Martínez, Benito
dc.date.accessioned	2022-05-03T12:59:59Z
dc.date.available	2022-05-03T12:59:59Z
dc.date.issued	2022
dc.identifier.uri	https://hdl.handle.net/10550/82537
dc.description.abstract	A rigorous Surface Impedance (SI) formulation for planar waveguides is presented. This modal technique splits the modal analysis of the waveguide in two steps. First, we obtain the modes characteristic equations as a function of the SI and, second, we need to obtain the surface impedance values using either analytical or numerical methods. We validate the technique by comparison with well-known analytical cases: the parallel-plate waveguide with losses and the dielectric slab waveguide. Then, we analyze an optical hollow-core waveguide de ned by two high-contrast subwavelength gratings validating our results by comparison with reported values. Finally, we show the potential of our formulation with the analysis of a THz hollow-core waveguide de ned by two surface-relief subwavelength gratings, including material losses in our formulation.
dc.language.iso	eng
dc.relation.ispartof	Ieee Access, 2022, vol. 10, p. 18843-18854
dc.source	Coves Soler, Ángela Maestre, Haroldo Archilés, Raimon Andrés, Miguel V. Gimeno Martínez, Benito 2022 Surface-Impedance Formulation for Hollow-Core Waveguides Based on Subwavelength Gratings Ieee Access 10 18843 18854
dc.subject	Ones electromagnètiques
dc.subject	Òptica
dc.subject	Materials
dc.title	Surface-Impedance Formulation for Hollow-Core Waveguides Based on Subwavelength Gratings
dc.type	journal article	es_ES
dc.date.updated	2022-05-03T12:59:59Z
dc.identifier.doi	https://doi.org/10.1109/ACCESS.2022.3151163
dc.identifier.idgrec	150443
dc.rights.accessRights	open access	es_ES