Figure 4 | Scientific Reports

Figure 4

From: Broadband wave plates made by plasmonic metamaterials

Figure 4

Δn1, Δn2, and Δn2/Δn1 of three pairs of arrays of fishbone-shaped metallic structures. Δn1, Δn2, and Δn2/Δn1 as a function of frequency for (a) h1 = 8.6 mm, and h2 = 9.9 mm; (b) h1 = 7.6 mm, and h2 = 9.6 mm; (c) h1 = 7.2 mm, and h2 = 9.6 mm. The other geometrical parameters are the same as those in Fig. 1. Δn2/Δn1 in (a), (b), and (c) is approximately 4, 5, and 6 at 8.55 GHz.

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