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Nonlinear switching in arrays of semiconductor on metal photonic wires
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Effective index of the single semiconductor on metal and semiconductor on silica wires as a function of the waveguide width, , for . Dashed horizontal lines mark (from bottom to top) the refractive indices of air, glass, and semiconductor, respectively. (b) Loss (dashed line) length in a single waveguide on metal substrate as a function of the waveguide width, . Coupling length (full line) for two coupled waveguides as a function of the separation distance, , and .

Image of FIG. 2.
FIG. 2.

(a) Nonlinear parameter and (b) as a function of , calculated for several widths and .

Image of FIG. 3.
FIG. 3.

Evolution of in a single waveguide with and . (a) is the linear regime and (b) is the nonlinear one (with ). (c) shows the nonlinear phase shift as a function of , the slope of the straight line gives and the dashed vertical line marks .

Image of FIG. 4.
FIG. 4.

Evolution of in the three waveguides array for the edge excitation case in the (a) linear and (b) nonlinear regimes. The isosurfaces enclose the volume inside the semiconductor where . Distances shown are measured in microns. Array dimensions are , , and .

Image of FIG. 5.
FIG. 5.

The same as Fig. 4 but when the input is sent into the central waveguide.

Image of FIG. 6.
FIG. 6.

Variations in the power flow in the semiconductor wires with propagation distance corresponding to Figs. 4(a) and 4(b), respectively.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nonlinear switching in arrays of semiconductor on metal photonic wires