Polaritons in uniaxial materials propagating in hollow cylinders

Nobre, Eloneid Felipe; Farias, G. A.; Almeida, Nuno

doi:10.1364/josaa.17.000173

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Cited by 6 publications

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“…The cylindrical geometry presents some peculiarities that make it very different from the planar and spherical geometries. In a coaxial cylinder, the presence of new interfaces provokes the appearance of new branches in the dispersion relation, even if the magnetic field is absent [1]. The presence of a magnetic field applied on a semiconductor cylindrical system, causes significant alterations in the modes of propagation of polaritons.…”

Section: Introductionmentioning

confidence: 99%

Influence of a magnetic field on the energy fow of surface polaritons propagating in semiconductor cylinders

Farias¹,

Nobre²,

Moretzsohn³

et al. 2004

Braz. J. Phys.

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Section: Introductionmentioning

confidence: 99%

Influence of a magnetic field on the energy fow of surface polaritons propagating in semiconductor cylinders

Farias¹,

Nobre²,

Moretzsohn³

et al. 2004

Braz. J. Phys.

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Optical properties of cylindrical interfaces

Nobre¹,

Vilela²,

Farias³

et al. 2007

Phys. Status Solidi (c)

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We are interested in the study of the optical properties of cylindrical interfaces by the analysis of the propagation of energy and power in coaxial cylinders. The numerical results are obtained for the surface polaritons propagating in semiconductors coaxial cylinders made of GaN and AlN. [3,6], updated the interest on the study of this kind of electromagnetic excitation. Particularly, the study of polaritons in microcavities has received a great deal of attention nowadays. Surface plasmon polaritons play a particularly important role in light-matter interactions at the nanometer scale, improving their performance in biology, nanotechnology, and materials sciences [4,7]. In the study reported here, we have analyzed the propagation of surface polaritons in coaxial cylinders made of GaN and AlN. First of all we focused our attention on the dispersion relation and we concentrate on the nonradiative modes, since these modes are important in optical communications. In sequence, we analyzed the energy density, the power flow and the energy transport velocity.

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