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Probing micro-plastic items with coherent light enables their identification through digital holography
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Researchers demonstrated that digital holography microscopy can identify microplastics in water by generating a unique phase-contrast "fingerprint" from coherent light, offering a promising non-destructive imaging technique for mapping microplastic distribution and abundance in water samples.
Detection of micro-plastics in water samples is a highly pursued goal to map the distribution and abundance of these pollutants. Here we investigate the possibility to probe micro-plastics with coherent light and to image them by digital holography microscopy. From the recorded hologram, we access the phase-contrast map of the object. We show that this map can be used as a distinctive fingerprint to identify microplastics in water.
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