Author/Authors :
Zheng Kuang، نويسنده , , Dun Liu and Guang S. He ، نويسنده , , Walter Perrie، نويسنده , , Stuart Edwardson، نويسنده , , Martin Sharp، نويسنده , , Eamonn Fearon، نويسنده , , Geoff Dearden، نويسنده , , Ken Watkins، نويسنده ,
Abstract :
Fast parallel femtosecond laser surface micro-structuring is demonstrated using a spatial light modulator (SLM). The Gratings and Lenses algorithm, which is simple and computationally fast, is used to calculate computer generated holograms (CGHs) producing diffractive multiple beams for the parallel processing. The results show that the finite laser bandwidth can significantly alter the intensity distribution of diffracted beams at higher angles resulting in elongated hole shapes. In addition, by synchronisation of applied CGHs and the scanning system, true 3D micro-structures are created on Ti6Al4V.
