Papers & References

Fast parallel diffractive multi-beam femtosecond laser surface micro-structuring

Discontinued Devices LC-R 2500 Spatial Light Modulators
Digital-/ Computer Holography/ CGH Pulse Application / -Shaping
Published on:
Authors: Zheng Kuang, Dun Liu, Walter Perrie, Stuart Edwardson, Martin Sharp, Eamonn Fearon, Geoff Dearden, Ken Watkins
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.”

Restricted Access

Publication: Applied Surface Science
Issue/Year: Applied Surface Science, Volume 255, Issues 13-14, 15 April 2009, Pages 6582-6588
DOI: 10.1016/j.apsusc.2009.02.043
Link: https://doi.org/10.1016/j.apsusc.2009.02.043
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