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Bulk and surface electromagnetic response of metallic metamaterials to convection electrons
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10.1063/1.3625952
/content/aip/journal/apl/99/7/10.1063/1.3625952
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/7/10.1063/1.3625952
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Schematic model of the considered metamaterials with convection electrons. Unit cell structures for (b) type I and (c) type II metamaterials.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Contour plot of the Hz field distribution is shown for 3D metamaterial type I at 360 keV of beam energy. (b) Simulated radiation angles for metamaterial type I (filled circles) and type II (hollow circles) are compared with the calculated angles for isotropic dielectric index of n = 1.32 (gray solid curve) and 1.54 (gray dashed curve), respectively.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Contour plot of the Hz field distribution is shown for the metamaterial of type II with the filling ratio, d/a = 4, and rod thickness of d/40 at 300 keV of beam energy. The red and blue colors indicate positive and negative amplitudes, respectively. (b) Frequency spectrum of the generated Hz field measured slightly above the structure. (c) Dispersion and transmittance plots for the metamaterial of type II with the filling ratio, d/a = 4, and rod thicknesses of d/40. The gray, green, and red lines refer to the light lines in free space and the medium with n = 1.54 and 300 keV beam line, respectively. The excited surface bound state (hollow circle) is located in the lowest band gap (shaded). (d) Dispersion plot of the excited surface waves (hollow circle) while varying the rod thickness from d/400 to d/5 is plotted together with 300 keV beam line (dashed line) and light line (solid line).

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/content/aip/journal/apl/99/7/10.1063/1.3625952
2011-08-16
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Bulk and surface electromagnetic response of metallic metamaterials to convection electrons
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/7/10.1063/1.3625952
10.1063/1.3625952
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