The wave impedance of an atomically thin crystal

Abstract

I propose an expression for the electromagnetic wave impedance of a two-dimensional atomic crystal, and I deduce the Fresnel coefficients in terms of this quantity. It is widely known that a two-dimensional crystal can absorb light, if its conductivity is different from zero. It is less emphasized that they can also store a certain amount of electromagnetic energy. The concept of impedance is useful to quantify this point.

References in corpus (9)

• Electric Field Effect in Atomically Thin Carbon Films
• Two Dimensional Atomic Crystals
• Universal Dynamic Conductivity and Quantized Visible Opacity of Suspended Graphene
• Making graphene visible
• Measurement of the optical dielectric function of transition metal dichalcogenide monolayers: MoS2, MoSe2, WS2 and WSe2
• Hunting for Monolayer Boron Nitride: Optical and Raman Signatures
• Spectroscopic ellipsometry of graphene and an exciton-shifted van Hove peak in absorption
• Visibility of dichalcogenide nanolayers
• Optical identification of atomically thin dichalcogenide crystals

Cited by in corpus (5)

• Nonlinear optical response of a two-dimensional atomic crystal
• Transverse electric surface mode in atomically thin Boron-Nitride
• Clausius-Mossotti Lorentz-Lorenz relations and retardation effects for two-dimensional crystals
• Third-order Optical Nonlinearity in Two-dimensional Transition Metal Dichalcogenides
• Role of the radiation-reaction electric field in the optical response of two-dimensional crystals