Hyperbolic dispersion and plasmon-polariton gap induced by off-diagonal anisotropy in photonic heterostructures

Optics Letters 2026

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Authors: A. E.B. Costa, F. S. Passos, Tiago Peixoto da Silva Lobo, Solange Bessa Cavalcanti
DOI: 10.1364/ol.585514
Cited by: 0
References: 17

Abstract

The influence of the optical axis orientation on the features of the plasmon-polariton (PP) gap in photonic heterostructures is investigated. To this end a one-dimensional layered system embedded in vacuum and formed by stacking alternate layers of anisotropic metamaterial and air is thoroughly analyzed. Within the formalism of Maxwell's equations and transfer matrix techniques we show the existence of the PP-gap at normal incidence. Furthermore, by tuning the frequency of the incident wave in the neighborhood of this gap, the otherwise usual elliptic dispersion relation, becomes hyperbolic.

Fields of Study & Subjects

Metamaterials and Metasurfaces Applications Plasmonic and Surface Plasmon Research Photonic Crystals and Applications

Publication details

Journal / source
Optics Letters
Volume
51
Issue
5
Pages
1223–1223
Publication date
30 January 2026
Language
EN