Backward Tamm states in left-handed metamaterials
Abdolrahman Namdar, Ilya V. Shadrivov, Yuri S. Kivshar
Abstract
We study the electromagnetic surface waves localized at an interface separating a one-dimensional photonic crystal and left-handed metamaterial, the so-called surface Tamm states. We demonstrate that the metamaterial allows for a flexible control of the dispersion properties of surface states, and can support the Tamm states with a backward energy flow and a vortex-like structure.
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