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Proceedings Paper

Femtosecond laser 3D nanofabrication in glass: enabling direct write of integrated micro/nanofluidic chips
Author(s): Ya Cheng; Yang Liao; Koji Sugioka
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Paper Abstract

The creation of complex three-dimensional (3D) fluidic systems composed of hollow micro- and nanostructures embedded in transparent substrates has attracted significant attention from both scientific and applied research communities. However, it is by now still a formidable challenge to build 3D micro- and nanofluidic structures with arbitrary configurations using conventional planar lithographic fabrication methods. As a direct and maskless fabrication technique, femtosecond laser micromachining provides a straightforward approach for high-precision spatial-selective modification inside transparent materials through nonlinear optical absorption. Here, we demonstrate rapid fabrication of high-aspect-ratio micro- and/or nanofluidic structures with various 3D configurations in glass substrates by femtosecond laser direct writing. Based on this approach, we demonstrate several functional micro- and nanofluidic devices including a 3D passive microfluidic mixer, a capillary electrophoresis (CE) analysis chip, and an integrated micro-nanofluidic system for single DNA analysis. This technology offers new opportunities to develop novel 3D micro-nanofluidic systems for a variety of lab-on-a-chip applications.

Paper Details

Date Published: 6 March 2014
PDF: 12 pages
Proc. SPIE 8967, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XIX, 896708 (6 March 2014); doi: 10.1117/12.2042742
Show Author Affiliations
Ya Cheng, Shanghai Institute of Optics and Fine Mechanics (China)
Yang Liao, Shanghai Institute of Optics and Fine Mechanics (China)
Koji Sugioka, RIKEN-SIOM Joint Research Unit (Japan)

Published in SPIE Proceedings Vol. 8967:
Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XIX
Yoshiki Nakata; Xianfan Xu; Stephan Roth; Beat Neuenschwander, Editor(s)

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