Nanomaterials composed of a polymer with an ultra-thin metal layer are used in a number of advanced technologies – such as organic LEDs in TVs or tablet screens, organic solar cells, sensors, or fuel cells. In many of these, they promise to improve cost-efficiency, which makes them particularly attractive for the industry. Thus, a lot of research is devoted to these metal-polymer hybrid materials and the optimization of their manufacturing. Ultra-thin metal layers, for example gold films, are created by sputter deposition: In essence, gold atoms are fired onto a substrate. This is done in a matter of a few seconds in industrial applications. As a consequence, if one desires to observe the gold atoms’ behavior upon arrival at the substrate, one needs to monitor this process at very small spatial scales and with extremely high temporal resolution. This has now, for the first time, been achieved.