Laser induced damage in porous glass - A pathway to 3D fabrication of micro-/nanofluidics

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

3 Scopus citations

Abstract

We report on controllable production of nanostructures embedded in a porous glass by femtosecond laser direct writing. We show that a hollow nano-void with a lateral size of -40 nm and an axial size of -1500 nm can be achieved by manipulating the peak intensity and polarization of the writing laser beam. The single nano-voids can be smoothly connected into a continuous nanochannel by water-assisted femtosecond laser direct writing. With this technique, integrated micro-nanofluidic systems have been achieved by simultaneously writing micro- and nanofluidic channels arranged into various 3D configurations in glass substrates. The fabricated micro- and nanofluidic systems have been applied to demonstrate DNA analysis, e. g., stretching of DNA molecules. Our technique offers new opportunities to develop novel 3D micro-nanofluidic systems for a variety of lab-on-a-chip applications.

Original languageEnglish
Title of host publicationPacific Rim Laser Damage 2013
Subtitle of host publicationOptical Materials for High Power Lasers
DOIs
StatePublished - 2013
Externally publishedYes
EventPacific Rim Laser Damage 2013: Optical Materials for High Power Lasers - Shanghai, China
Duration: 19 May 201322 May 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8786
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferencePacific Rim Laser Damage 2013: Optical Materials for High Power Lasers
Country/TerritoryChina
CityShanghai
Period19/05/1322/05/13

Keywords

  • direct writing
  • femtosecond laser
  • nanochannels
  • porous glass
  • three dimensional

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