Beschreibung: The goal of the rollerNIL project is to replicate complex opticals structues – biomimetic structural colors – using roller-based nanoimprint lithography. Master fabrication and in-line capable measurement systems will be investigated. To understand the process, simulations will be performed, which will allow to detail material and process requirements. The replication of undercut structures in this project represents a significant advancement of NIL and aims at demonstrating the general possibility to apply large area biomimetic structural colors. The main task of ZONA is the optical characterization, optical simulations, as well as applying electron microscopy techniques to the structures.