Fig. 6: Surface photoemission simulation geometry. | Nature Communications

Fig. 6: Surface photoemission simulation geometry.

From: Plasmonic nanostar photocathodes for optically-controlled directional currents

Fig. 6

Example nanostar surface mesh and nonlinear field enhancement distribution utilized in theoretical 3D photoemission calculations. Multiphoton photoemission distributions are calculated with respect to the surface normal for each nanostar surface area element (e.g., shaded patch) corresponding to each triangular mesh vertex at which the surface field enhancements are calculated.

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