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Scatterometry and diffractometry techniques to monitor surfaces textured by rapid ultra-short pulse laser

 
: Alleaume, Clovis; Alamri, Sabri; Kunze, Tim; Ziegler, Johannes; Wilson, Andy; Bola, Rita

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JPhys photonics 2 (2020), Nr.3, Art. 031004, 11 S.
ISSN: 2515-7647
European Commission EC
H2020; 825503; PROMETHEUS
Pulsed Rapid ultra-short laser surface texturing for Manufacture of FlexiblE and CusTomisEd ProdUctS
Englisch
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer IWS ()
diffractometry; Texturing; scatterometry

Abstract
The overall aim of the PROMETHEUS project is to develop high power ultra-short pulse lasers and the associated optics to enable the precise periodic texturing of surfaces to impart a range of surface functionalities at unprecedented processing speeds. The project focusses upon the industrial application of ultra-short pulse lasers for manufacturing and on the development of high power ultra-short pulse laser technologies in the range of 700 ps – 10 ns. In summary, new textures will be manufactured to achieve functional surfaces utilising fewer raw materials, less energy and less waste; improve accuracy, power and control over existing technologies; increase achievable precision and minimize heat impact on sensitive materials. This article will provide the outcomes of the first results achieved from the monitoring solutions being used to assess surface textures with micrometer resolution.

: http://publica.fraunhofer.de/dokumente/N-606120.html