Resonant photothermal IR spectroscopy of picogram samples with microstring resonator

Shoko Yamada, Silvan Schmid, Anja Boisen

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    Abstract

    Here, we report a demonstration of resonant photothermal IR spectroscopy using microstrings in mid-infrared region providing rapid identification of picogram samples. In our microelectromechanical resonant photothermal IR spectroscopy system, samples are deposited directly on microstrings using an in-situ sampling method and the resonance frequency of the string is measured optically. Resonance frequency shifts, proportional to the absorbed heat, are recorded in real time as monochromatic infrared light is being scanned over the mid-infrared range. These resonant photothermal IR spectroscopy spectra, obtained from picogram samples, suggest promising future applications of this approach.
    Original languageEnglish
    Title of host publicationProceedings of the The 17th International Conference on Solid-State Sensors, Actuators and Microsystems
    PublisherIEEE
    Publication date2013
    ISBN (Print)9781467359832
    DOIs
    Publication statusPublished - 2013
    Event17th International Conference on Solid-State Sensors, Actuators and Microsystems - Centro de Convenciones Internacional de Barcelona (CCIB) , Barcelona, Spain
    Duration: 16 Jun 201320 Jun 2013
    Conference number: 17
    http://transducers-eurosensors2013.org/

    Conference

    Conference17th International Conference on Solid-State Sensors, Actuators and Microsystems
    Number17
    LocationCentro de Convenciones Internacional de Barcelona (CCIB)
    CountrySpain
    CityBarcelona
    Period16/06/201320/06/2013
    Internet address

    Keywords

    • absorption
    • frequency measurement
    • infrared spectroscopy
    • micromechanical resonators
    • microsensors
    • monochromators
    • photothermal spectroscopy
    • Computing and Processing
    • Engineering Profession
    • General Topics for Engineers
    • Geoscience
    • Nuclear Engineering

    Cite this

    Yamada, S., Schmid, S., & Boisen, A. (2013). Resonant photothermal IR spectroscopy of picogram samples with microstring resonator. In Proceedings of the The 17th International Conference on Solid-State Sensors, Actuators and Microsystems IEEE. https://doi.org/10.1109/Transducers.2013.6626899