Photothermal Interferometry Gas Sensor Based on the First Harmonic Signal
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DOI: 10.1109/jphot.2018.2821845
Abstract: Photothermal interferometry (PTI) incorporated with wavelength modulation spectroscopy is a typical ultrasensitive spectroscopic technique for trace gas detection. In this paper, to our best knowledge, we demonstrate that the first harmonic signal is the best… read more here.
Keywords: gas; first harmonic; photothermal interferometry; harmonic signal ... See more keywords