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Remote Detection and Identification of Plastics with Raman Lidar

Springer Link (Chiba Institute of Technology) 2026

Summary

Researchers built a portable Raman lidar system using a pulsed 532 nm laser and gated ICCD spectrometer to remotely identify plastic types at six meters, demonstrating standoff detection as a practical foundation for monitoring ocean plastic pollution without physical sampling.

Study Type Environmental

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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