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Multidirectional surface-wave splitters
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) The sketch of the three-directional surface-wave splitter; (b) dispersion curves calculated with groove depths varying from to . , , and ; (c) electric field distributions on the line 0.2 mm above the grating with ; (d) electric field distributions along the vertical direction to the surface of the grating; (e) the propagation distances vs different surface-wave wavelengths. The sampled frequencies vary from 8.1 to 9.0 GHz. (f) Electric field distributions on the line 0.2 mm above the grating with and at 7.5 GHz.

Image of FIG. 2.
FIG. 2.

(a) The sizes of the three-directional surface-wave splitter. (b) Three-directional splitter aluminum samples. (c) The photograph of the field mapping experiment setup.

Image of FIG. 3.
FIG. 3.

Two-dimensional -component electric field distributions at the -plane, which is 2 mm above the upper surface of the structure. (a), (c), and (e) are results obtained from the full-wave simulations. (b), (d), and (f) correspond to experimental results.

Image of FIG. 4.
FIG. 4.

Numerical results obtained by using the full-wave simulations. [(a)–(c)]: two-dimensional field distributions at -plane above the surface and 1D optical intensity distribution from the origin of the structure, respectively. Inset: three-directional THz frequency splitter.


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Scitation: Multidirectional surface-wave splitters