Guided modes of a wire medium slab: comparison of effective medium approaches with exact calculations

J. Scott Brownless; Björn C P Sturmberg; Alexander Argyros; Boris T. Kuhlmey; C. Martijn De Sterke

doi:10.1103/PhysRevB.91.155427

Guided modes of a wire medium slab: comparison of effective medium approaches with exact calculations

J. Scott Brownless, Björn C P Sturmberg, Alexander Argyros, Boris T. Kuhlmey, C. Martijn De Sterke

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We derive the dispersion relations of the guided modes in wire media slabs using a transmission and reflection matrix approach, providing a physically insightful perspective into wave propagation in wire media slabs. We find new approximations to the dispersion relations, and assess their accuracy and the regimes for which they hold. We do so both analytically, and against exact calculations of the electromagnetic fields without reference to effective media. We then analyze the effects of the background refractive index on the guided modes, proposing explanations for the observed behavior.

Original language	English
Article number	155427
Pages (from-to)	155427-1-155427-10
Number of pages	10
Journal	Physical Review B: Condensed Matter and Materials Physics
Volume	91
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevB.91.155427 https://doi.org/10.1103/PhysRevB.93.159903
Publication status	Published - 24 Apr 2015
Externally published	Yes

Bibliographical note

Erratum can be found at Physical Review B Volume 93 article 159903, https://doi.org/10.1103/PhysRevB.93.159903

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Brownless, J. S., Sturmberg, B. C. P., Argyros, A., Kuhlmey, B. T., & De Sterke, C. M. (2015). Guided modes of a wire medium slab: comparison of effective medium approaches with exact calculations. Physical Review B: Condensed Matter and Materials Physics, 91(15), 155427-1-155427-10. Article 155427. https://doi.org/10.1103/PhysRevB.91.155427, https://doi.org/10.1103/PhysRevB.93.159903

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abstract = "We derive the dispersion relations of the guided modes in wire media slabs using a transmission and reflection matrix approach, providing a physically insightful perspective into wave propagation in wire media slabs. We find new approximations to the dispersion relations, and assess their accuracy and the regimes for which they hold. We do so both analytically, and against exact calculations of the electromagnetic fields without reference to effective media. We then analyze the effects of the background refractive index on the guided modes, proposing explanations for the observed behavior.",

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Brownless, JS, Sturmberg, BCP, Argyros, A, Kuhlmey, BT & De Sterke, CM 2015, 'Guided modes of a wire medium slab: comparison of effective medium approaches with exact calculations', Physical Review B: Condensed Matter and Materials Physics, vol. 91, no. 15, 155427, pp. 155427-1-155427-10. https://doi.org/10.1103/PhysRevB.91.155427, https://doi.org/10.1103/PhysRevB.93.159903

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AU - De Sterke, C. Martijn

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Guided modes of a wire medium slab: comparison of effective medium approaches with exact calculations

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