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. 2017 Apr 11;7:46093. doi: 10.1038/srep46093

Figure 5. Modes analysis of the coupling between SPPs and standing wave.

Figure 5

(a) and (b) Distribution of Inline graphic and Inline graphic amplitudes at the positions of (2.0 μm, 8.3 μm), (2.2 μm, 8.45 μm), (2.4 μm, 8.575 μm) and (2.6 μm, 8.675 μm) in Fig. 2(b), respectively. (c) Comparison of the simulated and calculated thickness of the dielectric layer. (d) Distribution of Inline graphic amplitudes at the positions of (2.3 μm, 8.3 μm), (2.35 μm, 8.45 μm), (2.4 μm, 8.575 μm) and (2.45 μm, 8.675 μm) in Fig. 2(a).