Abstract
We couple phosphorene with an Ag grating and exploit the resulting magnetic polaritons (MPs) to deliver the collected phonons to the phosphorene sheet. The power dissipation in the Ag grating and phosphorene is also investigated. The calculated results indicate that a large amount of power is absorbed by the phosphorene and results in about a 40-fold enhancement of absorption at λ=595.5nm. This design enables the increase of the absorption of phosphorene in the near-infrared (NIR) and visible region by varying the grating dimensions. In addition, the fundamental resonance frequencies excited by MPs in the Ag grating are explained by a LC circuit model.
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