Product Code: ICAL05_M408

Microstructuring Using Femtosecond Pulsed Laser Ablation
Authors:
Max Groenendijk, University of Twente; Enschede Netherlands
Presented at ICALEO 2005

A self-induced mechanism leading to the formation of periodic microstructures has been observed during femtosecond pulsed laser ablation with a high repetition laser source. The bottom of an ablated area, machined by the direct write method, shows two different kinds of microstructures. Dependant on the process parameters, a periodic ripple or a pillar structure emerges. The parameters leading to these phenomena have been identified as well as the possible variations in aspect ratios and feature sizes. Furthermore the application of such structures for the generation of self-cleaning surfaces is subject of research.