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Fig. 10 | Nano Convergence

Fig. 10

From: Chiral metamaterials: enhancement and control of optical activity and circular dichroism

Fig. 10

Photonic topological insulator. a Topologically protected surface states at the interface between a chiral hyperbolic metamaterial and a vacuum. b Cross section view (x-y plane) of the field distribution. Stars represent line sources with a z-dependent phase gradient designed to excite electromagnetic waves with k z =1.1k 0, k z =1.3k 0, and k z =1.5k 0 from the top. The bottom is for a negative chirality parameter γ=−0.4 at k z =1.5k 0. Adapted from Ref. [95]

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