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    • Patricia Daukantas

    Freelance Writer

    Patricia Daukantas is a freelance writer based in Greenbelt, MD.

    (Courtesy of LightPath Technologies, based on USGS data)
    FIGURE 1. Together, China and Russia provide 83% of the world’s germanium, with other non-U.S. countries producing about 12%.
    Optics

    Chalcogenide glass gears up for infrared imaging

    Sam Rubin
    Oct. 21, 2022
    Chalcogenide glasses transmit a wide range of infrared (IR) wavelengths and are poised to take over the market for imaging and laser optics in this spectral range. But U.S. manufacturin...