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Spoof Plasmons Affected by the Corrugated Structures

100%
Gric T.
Acta Physica Polonica A
|
2017
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vol. 132
|
issue 4
1347-1350
EN
As reported by Ritchie, the fundamental optical excitations that are confined to a metal/dielectric interface are referred as the surface plasmon polaritons. In the present study, we report on a theoretical investigation of the dispersion relation of surface plasmon polaritons on the periodically corrugated surfaces. Tunability of these structures can be enhanced further changing the employed material.
2
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Surface-Plasmon-Polaritons at the Interface of Graded Index Material and Semiconductor

100%
Gric T.
Acta Physica Polonica A
|
2016
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vol. 129
|
issue 3
352-354
EN
We have investigated the properties of structures incorporating graded index materials with parabolic permittivity profile. Surface-plasmon-polaritons at the interface of graded index material and semiconductor are studied by means of numerical simulations. We analyze the dependence of the dispersion characteristics on the graded index material profile as well as on the semiconductor concentration via the finite-difference time-domain simulations. Effects of the structure on dielectric and magnetic properties are taken into account by introducing the Drude model in the semiconductor dispersion.
3
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Electric Field Distributions in the Open Cylindrical Silicon Carbide Waveguides

51%
Asmontas S., Nickelson L., Gric T.
Acta Physica Polonica A
|
2009
|
vol. 115
|
issue 6
1160-1161
EN
Here are presented the results of an electrodynamical analysis of the SiC waveguides with two different radii R=1.5 mm and R=2.5 mm. We have investigated the dispersion characteristics of these waveguides as well as the electric field distributions in the waveguide cross-sections at f=50 and 25 GHz.
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