Aufgefächertes
Aufgefächertes is a German term used as a participial adjective meaning “spread out in a fan-shaped pattern” or “distributed into fan-like sections.” It describes a arrangement or distribution that resembles a fan, with elements radiating or fanning outward from a common origin. The word combines the prefix auf- (out, open) with gefächert (distributed into fächers, or fan-shaped sectors), and is typically applied in technical and descriptive contexts.
In optics and spectroscopy, aufgefächertes describes light or spectra that have been separated into their component
Etymologically, it derives from auf- plus gefächert, the past participle of fächern (to fan out, to split