Fabrication of microstructures by rear-side picosecond laser irradiation of two-layer PMMA

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Micro-structures offer superior functions such as superhydrophobicity, selfcleaning, anti-wear and drag reduction. In this paper, various microstructures were fabricated by rear-side picosecond laser irradiation of two-layer materials. The material of underlying layer was commonly commercial available ink; the material of surface layer was PMMA. The high light absorptivity of underlying material result in significantly reduced absorption depth. The laser source could therefore be regarded as plane heat source, leading to better surface morphologies after the mater-laser interaction. The results showed that convex structures were obtained at a lower laser fluence; with increase of laser fluence, a doughnut-like structures were obtained; with further rise of laser fluence, bowl-like structures would be obtained. Moreover, the size of microstructures could be tuned by adjusting laser processing parameters such as laser power, frequency and laser-mater interaction time. This method provides an insight for fabrication of functional surface.

Original languageEnglish
Title of host publicationFiber Lasers and Glass Photonics
Subtitle of host publicationMaterials through Applications
EditorsStefano Taccheo, Jacob I. Mackenzie, Maurizio Ferrari
PublisherSPIE
ISBN (Electronic)9781510618923
DOIs
StatePublished - 2018
EventFiber Lasers and Glass Photonics: Materials through Applications 2018 - Strasbourg, France
Duration: 22 Apr 201826 Apr 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10683
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceFiber Lasers and Glass Photonics: Materials through Applications 2018
Country/TerritoryFrance
CityStrasbourg
Period22/04/1826/04/18

Keywords

  • Bowl-like structures
  • Convex structures
  • Doughnut-like structures
  • Functional surface Glaser fabrication.
  • Micro-structures

Fingerprint

Dive into the research topics of 'Fabrication of microstructures by rear-side picosecond laser irradiation of two-layer PMMA'. Together they form a unique fingerprint.

Cite this