Abstract
In a recent experiment, the out-of-plane surface susceptibility of a single-layer two-dimensional atom crystal in the visible spectrum has been measured. This susceptibility gives a measurable contribution to the reflectivity of two-dimensional materials. Here we provide a complete theoretical description of the reflective properties, considering incoming - and -polarized plane waves at any angle of incidence on the crystal, computing local, reflected, and transmitted electromagnetic fields. We finally connect the microscopic polarizability to both the in-plane and the out-of-plane macroscopic surface susceptibilities.
- Received 3 January 2022
- Accepted 2 May 2022
DOI:https://doi.org/10.1103/PhysRevA.105.053515
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