News / Project Newsletter


Direct Laser Interference Patterning (DLIP) is a process that utilizes multiple laser beams to create highly precise and intricate patterns on a wide range of materials, including metals, polymers, and ceramics. Compared to Direct Laser Writing (DLW), which uses a single beam to write patterns, DLIP allows for faster and more energy-efficient processing, as well as the fabrication of small-scale patterns in the range of 0.5 µm – 10 µm.

  • ▪ Progress until now: A high-speed DLIP texturing module has been developed by @Fraunhofer IWS , which is capable of achieving a texturing speed of >1m²/min. To accomplish this, the main optical beam is divided into two sub-beams and an interference pattern is generated on the target substrate for each of them, resulting in a double output beam. With the use of beam shaping components from Holo/OR, two line-like DLIP spots can be achieved, with each spot containing a top-hat profile and a length of up to 20 mm. The head was implugged in the PROMETHEUS machine and first tests successfully fulfilled using PROMETHEUS laser.

  • ▪ Next Steps: End user case studies will be performed using the complete PROMETHEUS machine at MTC.