Femtosecond laser microstructuring for polymeric lab-on-chips

Authors

  • Shane M. Eaton,

    Corresponding author
    1. Istituto di Fotonica e Nanotecnologie IFN – CNR and Dipartimento di Fisica – Politecnico di Milano, P.zza L. da Vinci 32, 20133 Milano, Italy
    • Phone: +39 02 2399 6063
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  • Carmela De Marco,

    1. Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta” – Politecnico di Milano, P.zza L. da Vinci 32, 20133 Milano, Italy
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  • Rebeca Martinez-Vazquez,

    1. Istituto di Fotonica e Nanotecnologie IFN – CNR and Dipartimento di Fisica – Politecnico di Milano, P.zza L. da Vinci 32, 20133 Milano, Italy
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  • Roberta Ramponi,

    1. Istituto di Fotonica e Nanotecnologie IFN – CNR and Dipartimento di Fisica – Politecnico di Milano, P.zza L. da Vinci 32, 20133 Milano, Italy
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  • Stefano Turri,

    1. Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta” – Politecnico di Milano, P.zza L. da Vinci 32, 20133 Milano, Italy
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  • Giulio Cerullo,

    1. Istituto di Fotonica e Nanotecnologie IFN – CNR and Dipartimento di Fisica – Politecnico di Milano, P.zza L. da Vinci 32, 20133 Milano, Italy
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  • Roberto Osellame

    1. Istituto di Fotonica e Nanotecnologie IFN – CNR and Dipartimento di Fisica – Politecnico di Milano, P.zza L. da Vinci 32, 20133 Milano, Italy
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Abstract

This paper provides an overview of femtosecond laser microfabrication in polymeric materials, with emphasis on lab-on-chip applications. Due to the nonlinear interaction of femtosecond laser pulses with polymers, laser-induced modifications are localized to the focal volume, enabling high resolution patterning in 3D. Femtosecond laser microfabrication offers unmatched versatility in fabricating surface microchannels and diffractive optics by means of laser ablation, buried optical waveguides and micro-optics through refractive index modification and complex 3D microstructures in photoresists by two-photon polymerization. Femtosecond laser microfabrication technology opens the door to fabricating integrated lab-on-chip devices with a single tool. (© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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