Extended Data Fig. 5: AFM images of Au coatings.
From: 3D-printed micro ion trap technology for quantum information applications
a,b, 1-μm-thick Au coating deposited on a sapphire substrate. c,d, 1-μm-thick Au coating deposited on a 3D-printed polymer DC electrode. Average roughness is 9.1 nm on sapphire and 6.5 nm on polymer. Peak-to-valley roughness is 58.5 nm on sapphire and 30.6 nm on polymer.
