Polaritons in 2D-crystals and localized modes in narrow waveguides
Abstract
We study 2D-polaritons in an atomically thin dipole-active layer (2D-crystal) placed inside a parallel-plate wavegude, and investigate the possibility to obtain the localized wavegude modes associated with atomic defects. Considering the wavegude width, l, as an adjustable parameter, we show that in the waveguide with l 104 a, where a is the lattice parameter, the localized mode can be provided by a single impurity or a local structural defect.
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