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Simulation of Optical Planar Waveguide Sensor for Microplastics Detection in Water
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Researchers simulated an optical planar waveguide sensor for detecting microplastics in water using COMSOL Multiphysics wave optics modeling. The simulations showed that evanescent wave variations at different analyte refractive indices within the microplastic range (1.48-1.50 RIU) confirmed the sensor's theoretical detection potential.
Nowadays, microplastics pollution has become a global concern as it endangers the ecology, marine animals, and cause health threats to human beings. This paper attempted to simulate an optical planar waveguide sensor for microplastics detection in water via Wave Optics Module-COMSOL Multiphysics®. The analyte refractive index was ranged from 1.4800 to 1.5000 RIU, in reference to the microplastics refractive index. The simulation results showed significant variations in the evanescent waves of the sensor at different analyte refractive indices, thus proving that the sensor has potential for microplastics detection in water with sensitivity of 0.0040 in dimensionless unit.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.