Near-zero-index media as electromagnetic ideal fluids

Iñigo Liberal, Michaël Lobet, Yue Li, Nader Engheta

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

Résumé

Near-zero-index (NZI) supercoupling, the transmission of electromagnetic waves inside a waveguide irrespective of its shape, is a counterintuitive wave effect that finds applications in optical interconnects and engineering light-matter interactions. However, there is a limited knowledge on the local properties of the electromagnetic power flow associated with supercoupling phenomena. Here, we theoretically demonstrate that the power flow in two-dimensional (2D) NZI media is fully analogous to that of an ideal fluid. This result opens an interesting connection between NZI electrodynamics and fluid dynamics. This connection is used to explain the robustness of supercoupling against any geometrical deformation, to enable the analysis of the electromagnetic power flow around complex geometries, and to examine the power flow when the medium is doped with dielectric particles. Finally, electromagnetic ideal fluids where the turbulence is intrinsically inhibited might offer interesting technological possibilities, e.g., in the design of optical forces and for optical systems operating under extreme mechanical conditions.

langue originaleAnglais
Pages (de - à)24050-24054
Nombre de pages5
journalProceedings of the National Academy of Sciences of the United States of America
Volume117
Numéro de publication39
Les DOIs
Etat de la publicationPublié - 29 sept. 2020
Modification externeOui

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