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https://hku.zoom.us/j/94521050228?pwd=RV17sWh1SfQAbqxuu0Wyz4KccV8Cxq.1

Meeting ID: 945 2105 0228

Password: 346333

Abstract:

In modern industry, agriculture, and environmental protection, the detection of specific gases holds significant practical importance. Photoacoustic spectroscopy (PAS), leveraging the photoacoustic effect, has emerged as an important method for trace gas analysis due to its high sensitivity, selectivity, and rapid response. In recent years, Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) has revolutionized traditional PAS by replacing conventional microphones with quartz tuning forks as acoustic transducers. This innovation significantly enhances system miniaturization and noise resistance, establishing QEPAS as a pivotal advancement in photoacoustic sensing.

This seminar will focus on the fundamental mechanisms and recent advancements of Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS), including its applications in environmental monitoring, medical diagnostics, and industrial processes. We will also explore future directions for QEPAS development, particularly potential improvements in sensitivity and selectivity, as well as the integration of advanced technologies.

ALL INTERESTED ARE WELCOME