Generation of optofluidic microchannels in ice

S. Anand, A. Engelbrecht, D. McGloin

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    We demonstrate that light can be used to create microchannels in ice. We make use of free space and fiber coupled infrared laser light to produce microchannels with diameters down to 100 microns in diameter. We demonstrate that the channels can be created in a timescale of seconds and that by controlling the input power that they can be stabilized over a timescale of several minutes using powers as low as 30mW. We compare the fiber coupled geometry, using both single mode and multimode fiber and free space coupling and show that fiber coupling produces optimal results. We demonstrate that liquid samples can be inserted into the channels and particle movement is observed using a combination of optical and thermally induced forces. We also present data looking at droplet freezing within the microchannels. We present preliminary results looking at dual beam coupling into such optofluidic channels and examine prospects for using such channels as rapid microfluidic prototypes. We further discuss the possibility of using optically shaped ice channels as a means to study aerosol nucleation processes and the ability of ice to act as a template for microfluidic devices.

    Original languageEnglish
    Title of host publicationMicro-Optics 2010
    EditorsHugo Thienpont, Peter Van Daele, Jürgen Mohr, Hans Zappe
    Place of PublicationBellingham
    PublisherSPIE-International Society for Optical Engineering
    Number of pages9
    ISBN (Print)9780819481894
    DOIs
    Publication statusPublished - 2010
    EventSPIE Photonics Europe 2010: Micro-Optics - The Square Conference Centre, Brussels, Belgium
    Duration: 12 Apr 201016 Apr 2010
    http://spie.org/x40293.xml

    Publication series

    NameProceedings of SPIE
    PublisherSPIE
    Volume7716

    Conference

    ConferenceSPIE Photonics Europe 2010: Micro-Optics
    CountryBelgium
    CityBrussels
    Period12/04/1016/04/10
    Internet address

    Keywords

    • Optofluidics
    • ice
    • optical manipulation
    • microfluidics
    • MICROFLUIDICS
    • AEROSOLS

    Cite this

    Anand, S., Engelbrecht, A., & McGloin, D. (2010). Generation of optofluidic microchannels in ice. In H. Thienpont, P. Van Daele, J. Mohr, & H. Zappe (Eds.), Micro-Optics 2010 [771624] (Proceedings of SPIE; Vol. 7716). SPIE-International Society for Optical Engineering. https://doi.org/10.1117/12.854008