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Portable Raman lidar detects ocean plastics from 6 meters away, suggesting improved monitoring methods.
We report a portable Raman lidar system that can remotely detect ocean plastics. The system is based on a frequency-doubled, Q-switched Nd:YAG laser operated at 532 nm with a receiver telescope equipped with a gated ICCD spectrometer. Stand-off detection of plastics is achieved at 6 m away, thus providing the groundwork for better solutions in monitoring ocean plastic pollution.
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Somekawa et al. (2026) studied this question.
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