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Opt Express. 2012 Feb 13;20(4):4291-6. doi: 10.1364/OE.20.004291.

Fabrication of three-dimensional microfluidic channels inside glass using nanosecond laser direct writing.

Author information

  • 1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O. Box 800-211, Shanghai 201800, China.

Abstract

We show that fabrication of three-dimensional microfluidic channels embedded in glass can be achieved by using a Q-switched, frequency-doubled Nd:YAG laser. The processing mainly consists of two steps: (1) formation of hollow microfluidic channels in porous glass immersed in Rhodamine 6G dissolved in water by nanosecond laser ablation; and (2) postannealing of the fabricated porous glass sample at 1120 °C for consolidation of the sample. In particular, a bilayer microfluidic structure is created in glass substrate using this technique for showcasing its capability of three-dimensional structuring.

PMID:
22418188
[PubMed]
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