Fig. 1: Illustration of the fabricated layers and probing direction.
From: Ultrathin 2 nm gold as impedance-matched absorber for infrared light

The samples are based on 50 nm SixNy membranes comprising an initially 1.2(2) nm sputtered and further naturally oxidized copper layer. For characterization of optimal thickness, varying Au layers were deposited on top using physical vapor deposition.