Figure 1
From: Terahertz characterization of two-dimensional low-conductive layers enabled by metal gratings

Terahertz transmission through a two-dimensional conductive layer (image created in Adobe Illustrator v25.0.1, https://www.adobe.com/products/illustrator.html). (a) Illustration of the analyzed geometry, which consists of a conductive layer with sheet conductivity σs on top of an optically thin substrate (t < < λ). (b) Calculated transmittance versus sheet conductivity. (c) Calculated transmission sensitivity versus sheet conductivity. Sensitivity peaks in the mS range, thus characterizing low-conductive layers (µS range) becomes challenging.