Multi-material, multi-layer femtosecond laser surface processing

Alfred Tsubaki, Mark Anderson, Andrew Reicks, Jeffrey E. Shield, Dennis R. Alexander, Craig A. Zuhlke

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


Femtosecond laser surface processing (FLSP) is a material processing technique used to produce self-organized micro/nanostructures on metals. The hierarchal structures can improve the surface properties of materials when applied to specific applications such as enhancing heat transfer. In this paper, we demonstrate a recently developed technique termed multi-material, multi-layer FLSP (3ML-FLSP). With 3ML-FLSP, micro/nanoscale features can be produced that are composed of multiple materials by processing surfaces using traditional FLSP techniques that are layered with thin foils of different materials. We demonstrate results with three layers of different metals (304 stainless steel, copper, and aluminum) clamped together during laser processing to create structures composed of all three metals. Ion beam milling is used to cross-section structures for subsurface analysis of the microstructure. The three metals did not mix within the bulk of the microstructures indicating that the microstructures were produced primarily through preferential removal of material around the structures. However, there was mixing of all three materials within the nanoparticle layer that covers the microstructures.

Original languageEnglish (US)
Title of host publicationLaser-Based Micro- and Nanoprocessing XV
EditorsUdo Klotzbach, Akira Watanabe, Rainer Kling
ISBN (Electronic)9781510641839
StatePublished - 2021
EventLaser-Based Micro- and Nanoprocessing XV 2021 - Virtual, Online, United States
Duration: Mar 6 2021Mar 11 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceLaser-Based Micro- and Nanoprocessing XV 2021
Country/TerritoryUnited States
CityVirtual, Online


  • Femtosecond laser surface processing
  • Laser-matter interactions
  • Micro/nanostructured surfaces
  • Surface functionalization

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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