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Optical Engineering

Hybrid subtractive-additive-welding microfabrication for lab-on-chip applications via single amplified femtosecond laser source
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Paper Abstract

An approach employing ultrafast laser hybrid subtractive-additive microfabrication, which combines ablation, three-dimensional nanolithography, and welding, is proposed for the realization of a lab-on-chip (LOC) device. A single amplified Yb:KGW femtosecond (fs)-pulsed laser source is shown to be suitable for fabricating microgrooves in glass slabs, polymerization of fine-meshes microfilter out of hybrid organic–inorganic photopolymer SZ2080 inside them, and, finally, sealing the whole chip with cover glass into a single monolithic piece. The created microfluidic device proved its particle sorting function by separating 1- and 10-μm polystyrene spheres in an aqueous mixture. All together, this proves that laser microfabrication based on a single amplified fs laser source is a flexible and versatile approach for the hybrid subtractive-additive manufacturing of functional mesoscale multimaterial LOC devices.

Paper Details

Date Published: 15 September 2017
PDF: 7 pages
Opt. Eng. 56(9) 094108 doi: 10.1117/1.OE.56.9.094108
Published in: Optical Engineering Volume 56, Issue 9
Show Author Affiliations
Linas Jonušauskas, Vilnius Univ. (Lithuania)
Femtika (Lithuania)
Sima Rekštyte, Vilnius Univ. (Lithuania)
Ričardas Buividas, Swinburne Univ. of Technology (Australia)
Simas Butkus, Vilnius Univ. (Lithuania)
Roaldas Gadonas, Vilnius Univ. (Lithuania)
Femtika (Lithuania)
Saulius Juodkazis, Swinburne Univ. of Technology (Australia)
Melbourne Ctr. for Nanofabrication (Australia)
Mangirdas Malinauskas, Vilnius Univ. (Lithuania)

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