Detection and analysis of photo-acoustic emission in Direct Laser Interference Patterning.

ABSTRACT: Functional laser texturing by means of Direct Laser Interference Patterning is one of the most efficient approaches to fabricate well-defined micro textures which mimic natural surfaces, such as the lotus effect for self-cleaning properties or shark skin for reduced friction. While numerous technical and theoretical improvements have been demonstrated, strategies for process monitoring are yet to be implemented in DLIP, for instance aiming to treat complex and non-plane surfaces. Over the last 35 years, it has been shown that the sound pressure generated by a laser beam hitting a surface and producing ablation can be detected and analysed using simple and commercially available transducers and microphones. This work describes the detection and analysis of photo-acoustic signals acquired fr

SUBMITTER: Steege T 

PROVIDER: S-EPMC8282666 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature