Femtosecond laser direct writing in transparent materials based on nonlinear absorption

Li Jia Jiang, Shoji Maruo, Roberto Osellame, Wei Xiong, John H. Campbell, Yong Feng Lu

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Femtosecond laser direct writing (FsLDW) in transparent materials is a laser-based precise three-dimensional (3D) micro/nanofabrication method that has shown great potential for applications. The advantages of FsLDW originate in the nonlinear nature of absorption in the multiphoton absorption process. Over the past few years, transparent material micro/nanofabrication using FsLDW has seen several developments in materials and applications. Specifically, two-photon polymerization has been widely used as a precision direct-writing process for fabrication of polymeric 3D micro/nanostructures; internal/surface ablation of polymer 3D structures based on multiphoton absorption has been demonstrated and developed as a promising subtractive manufacturing technique; and femtosecond laser multiphoton modification in glass has been intensively studied for refractive-index change and generation of nanogratings and microvoids. This article describes the latest research on FsLDW in polymers and glasses with specific applications for large-dimension fabrication, microelectromechanical systems, microphotonics, and microfluidics.

Original languageEnglish (US)
Pages (from-to)975-983
Number of pages9
JournalMRS Bulletin
Issue number12
StatePublished - Dec 1 2016


  • ablation
  • laser
  • microstructure
  • polymerization

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


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