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Instrumentation for the measurement of single-particle circular intensity differential scattering for bioaerosol detection
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J
DOI：10.1364/AO.576502.png)
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Abstract
En 中文
We report the development of a prototype that can measure the single-particle phase function of circular intensity differential scattering (CIDS), i.e., the angular scattering ratio distribution of the Mueller matrix element-S14/S11 from individual single particles drawn into the system from the atmosphere or an aerosol generator. The system is developed from a laboratory experimental setup, improved, and constructed into a portable prototype with a dimension of 2400 & times; 1800 & times; 1200 for field measurements. The design facilitated the fast detection of bioaerosol particles or others with spiral/helical molecular structures at a size from 1 to 10 micron in diameter. The system achieved a maximum particle screening rate of 50,000 particles/sec. (c) 2026 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
Keywords:
LIGHT-SCATTERING
FLUORESCENCE-SPECTRA
POLARIZED-LIGHT
CLASSIFICATION
Journal
A
IF:
1.7
Papers:
798
Citations:
5.1W
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