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    • Peter Ostertag

    Director of Optics, Bosch Sensortec

    Peter Ostertag is director of optics at Bosch Sensortec (Reutlingen, Germany).

    (Image credit: Bosch Sensortec)
    FIGURE 1. The world’s smallest particulate matter sensor uses miniature lasers and is maintenance-free since it operates without a fan.
    Lasers & Sources

    Case study: Monitoring air quality on the move

    Peter Ostertag
    May 11, 2023
    TRUMPF and Bosch Sensortec introduce a tiny, portable particulate matter sensor based on vertical-cavity surface-emitting lasers (VCSELs).