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. 2015 Oct 1;5:14788. doi: 10.1038/srep14788

Figure 4. Spectral responses of the BNAs with MIM configuration.

Figure 4

Simulated reflection spectra of the BNAs with MIM configuration as a function of (a–c) a|| and (d–f) a⊥ for different spacer thicknesses: (a,d) t = 5 nm, (b,e) t = 50 nm, and (c,f) t = 200 nm. The gap size of the bowtie nanoantennas is 10 nm.