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Spectroscopy Takes the Long View on Threat Detection

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Quantum cascade laser-based and Raman spectroscopy vie for position in the growing marketplace for systems that detect chemical and biological threats at a distance.

JAMES SCHLETT, CONTRIBUTING EDITOR [email protected]

When the Perseverance rover landed in Mars’ Jezero crater on Feb. 18, 2021, it represented not only a leap in the search for life on the red planet but also in the identification of deadly chemicals on Earth. Mounted to the rover’s robotic arm is a 9-lb, deep-ultraviolet (DUV) Raman and fluorescence spectrometer called SHERLOC, which stands for Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals. An engineering model of the Mars Perseverance rover’s SHERLOC deep-ultraviolet (DUV) Raman and fluorescence spectrometer. Courtesy...Read full article

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    Published: March 2022
    FeaturesLasersdeep-UV lasersquantum cascade lasersQCLsUV Raman spectroscopydefense

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