Mid-Infrared Reflectance Spectroscopy Based on External Cavity Quantum Cascade Lasers for Mineral Characterization
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Updated: Oct 4, 2025

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Published on: March 22, 2019
Francis Vanier1, Anaïs Parrot1, Christian Padioleau1
1Energy, Mining and Environment, Ringgold:%206356National Research Council Canada, Boucherville, QC, Canada.
Abstract:
Mineral characterization using tunable external cavity quantum cascade lasers for mid-infrared reflectance spectroscopy is presented. Reflection spectra taken on common minerals are shown along with their spectral variations. Measurements at different incident angles were also obtained to mimic in the field applications. Finally, spectra were obtained on mineral mixtures and their analysis assesses the quality and usability of the technique for mineral characterization.
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