Figure 2 | Scientific Reports

Figure 2

From: Hyperbolic-polaritons-enabled dark-field lens for sensitive detection

Figure 2

Schematic of the HPEDL and the detecting principle. (a) Schematic configuration of the HPEDL consisting of type I (e.g., Au nanorod arrays) and type II (e.g., Ag/SiO2 multilayers) hyperbolic media. (b) The operation principle of the HPEDL. θ 1 and θ 2 are the angles between the Poynting vector (dark arrows) and the optical axis for type I and type II hyperbolic media, respectively.

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