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Ultrafast Lasers Probe the Fingerprint Region

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Ultrashort-pulse lasers that emit in the mid-IR range promise expanded capabilities for identifying chemical signatures across the molecular fingerprint region.

CHRISTOPHER LEBURN, CHROMACITY LTD.

Twenty years ago, spectroscopists typically relied on a toolbox of analytical techniques to collect the data needed to make measurements. From gas chromatography and mass spectrometry to high-performance liquid chromatography and nuclear magnetic resonance imaging, these techniques were time-consuming and expensive to implement, and they required bulky equipment. After initially making use of ultrafast light sources that operate in the visible and near-infrared ranges, the field of optical spectroscopy is beginning to take advantage of sources that operate in the mid-infrared...Read full article

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