Femtosecond laser microstructuring: an enabling tool for optofluidic lab-on-chips

Roberto Osellame, Hugo Hoekstra, Giulio Cerullo, Markus Pollnau

    Research output: Contribution to journalArticleAcademicpeer-review

    215 Citations (Scopus)

    Abstract

    This paper provides an overview of the rather new field concerning the applications of femtosecond laser microstructuring of glass to optofluidics. Femtosecond lasers have recently emerged as a powerful microfabrication tool due to their unique characteristics. On the one hand, they enable to induce a permanent refractive index increase, in a micrometer-sized volume of the material, allowing single-step, three-dimensional fabrication of optical waveguides. On the other hand, femtosecond-laser irradiation of fused silica followed by chemical etching enables the manufacturing of directly buried microfluidic channels. This opens the intriguing possibility of using a single laser system for the fabrication and three-dimensional integration of optofluidic devices. This paper will review the state of the art of femtosecond laser fabrication of optical waveguides and microfluidic channels, as well as their integration for high sensitivity detection of biomolecules and for cell manipulation.
    Original languageUndefined
    Pages (from-to)442-463
    Number of pages22
    JournalLaser & photonics reviews
    Volume5
    Issue number3
    DOIs
    Publication statusPublished - Feb 2011

    Keywords

    • EC Grant Agreement nr.: FP6/034562
    • EWI-19617
    • IR-76005
    • METIS-277544
    • IOMS-SNS: SENSORS

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