Figure 4.


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The magnitude of the power flow density, 10log10|S|, (color), and its direction (arrows) for small-core NPs (a)–(c), and large-core NPs (d)–(f). The power flow density is shown for the concentric, (a) and (d), as well as eccentric, (b)–(c) and (e)–(f), cases. For the latter, the core displacements of x12 = 5 nm, are considered in (b) and (e), whereas x12 = −5 nm in (c) and (f). The results are shown in a square region of 90 × 90 nm2. Curves illustrating the cylindrical surfaces of the NP are also shown.

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