dorsal/arxiv
View SchemaPlane waves with negative phase velocity in Faraday chiral mediums
| Authors | T. G. Mackay, A. Lakhtakia |
|---|---|
| Categories | |
| ArXiv ID | physics/0402057 |
| URL | https://arxiv.org/abs/physics/0402057 |
| DOI | 10.1103/PhysRevE.69.026602 |
| Journal | Phys. Rev. E, Vol. 69, article 026602, 2004 |
Abstract
The propagation of plane waves in a Faraday chiral medium is investigated. Conditions for the phase velocity to be directed opposite to the direction of power flow are derived for propagation in an arbitrary direction; simplified conditions which apply to propagation parallel to the distinguished axis are also established. These negative phase-velocity conditions are explored numerically using a representative Faraday chiral medium, arising from the homogenization of an isotropic chiral medium and a magnetically biased ferrite. It is demonstrated that the phase velocity may be directed opposite to power flow, provided that the gyrotropic parameter of the ferrite component medium is sufficiently large compared with the corresponding nongyrotropic permeability parameters.
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"abstract": "The propagation of plane waves in a Faraday chiral medium is investigated.\nConditions for the phase velocity to be directed opposite to the direction of\npower flow are derived for propagation in an arbitrary direction; simplified\nconditions which apply to propagation parallel to the distinguished axis are\nalso established. These negative phase-velocity conditions are explored\nnumerically using a representative Faraday chiral medium, arising from the\nhomogenization of an isotropic chiral medium and a magnetically biased ferrite.\nIt is demonstrated that the phase velocity may be directed opposite to power\nflow, provided that the gyrotropic parameter of the ferrite component medium is\nsufficiently large compared with the corresponding nongyrotropic permeability\nparameters.",
"arxiv_id": "physics/0402057",
"authors": [
"T. G. Mackay",
"A. Lakhtakia"
],
"categories": [
"physics.optics"
],
"doi": "10.1103/PhysRevE.69.026602",
"journal_ref": "Phys. Rev. E, Vol. 69, article 026602, 2004",
"title": "Plane waves with negative phase velocity in Faraday chiral mediums",
"url": "https://arxiv.org/abs/physics/0402057"
},
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