News / Project Newsletter
The PROMETHEUS DLIP vs DLW
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.
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▪ 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.
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▪ Next Steps: End user case studies will be performed using the complete PROMETHEUS machine at MTC.