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Mini-QCL Frequency Combs Provide Solution for Chemical Sensing

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Researchers at the Vienna University of Technology (TU Wien) are working with laser frequency combs to enable chemical analysis on a chip. This new patent-pending technology will enable frequency combs to be created on a single chip in a simple, robust manner. “It is relatively easy to build a spectrometer with two frequency combs,” researcher Benedikt Schwarz said. “It is possible to make use of beats between different frequencies, similar to those that occur in acoustics, if you listen to two different tones with similar frequency. We use this new method, because it...Read full article

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    BioPhotonics
    Feb/Mar 2019
    GLOSSARY
    integrated optics
    A thin-film device containing miniature optical components connected via optical waveguides on a transparent dielectric substrate, whose lenses, detectors, filters, couplers and so forth perform operations analogous to those of integrated electronic circuits for switching, communications and logic.
    spectrometry
    The study and measurement of spectra and their components.
    Research & TechnologyeducationEuropeTU WienVienna University of Technologylaserslight sourcesTunable Lasersfrequency combsquantum cascade lasersQCLsSensors & Detectorschemical sensorsminiature sensorsoptical sensor-on-a-chipspectroscopyIR spectroscopyMIRIRinfraredintegrated photonicsintegrated opticsspectrometrymid-infraredBioScan

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