Abstract
We propose an on-chip mid-infrared (MIR) photonic spectroscopy platform for aerosol and gas characterization to obtain highly discriminatory information on constituent chemistry. Sensing of aerosols (liquid or solid particles in the gas phase) is crucial for various environmental, climactic, and pulmonary healthcare applications. Further, there are several unintended exposures to bioaerosols, such as with viruses, bacteria, and fungi, for instance, the current pandemic of COVID-19 which is occurring across the world. Currently, chemical characterization of aerosols is performed using FTIR spectroscopy and Raman spectroscopy, both yielding chemical fingerprinting. But, these are bench-scale instruments, and no single spectrometer provides physical- chemical characterization of aerosol particles. Hence, we develop a miniaturized framework for performing in-situ physicochemical characterization.
© 2020 The Author(s)
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