Fig. 3: Benchmark test of our theory on a realistic system. | Light: Science & Applications

Fig. 3: Benchmark test of our theory on a realistic system.

From: Tailoring the lineshapes of coupled plasmonic systems based on a theory derived from first principles

Fig. 3

a Schematic of the coupled plasmonic system under study. Here, the geometrical parameters are p = 530, d = 30, w = 240, l = 420, R = 110, and a = 85, all in units of nm. b–d Reflectance spectra of periodic metasurfaces containing b bar resonators only, c C resonators only, and d the two resonators coupled together, obtained by our theory (solid lines), FEM simulations (circles), and measurements (triangles). White dashed lines and gray areas denote the frequencies and widths of the resonant modes. The right panels of c and d are SEM images of the fabricated samples with scale bars (white lines) of 500 nm

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