Figure 2 | Scientific Reports

Figure 2

From: Achromatic flat optical components via compensation between structure and material dispersions

Figure 2

Achromatic plasmonic deflector.

(a) Schematic configuration of flat achromatic beam deflector. (b–d) Ex distribution of the deflector at the wavelength λ = 1000 nm, 1500 nm and 2000 nm, respectively. (e) Simulated far field intensity as a function of the deflection angle θ with normal illumination. Inset: Simulated deflection angle θ as a function of wavelength. (e–f) Simulated phase shift (f) and (g) at 200nm above the output surface at the wavelength λ = 1000 nm (blue), 1500nm (green) and 2000nm (red).

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