A Wide-Range and Calibration-Free Spectrometer Which Combines Wavelength Modulation and Direct Absorption Spectroscopy with Cavity Ringdown Spectroscopy

A wide-range, calibration-free tunable diode laser spectrometer is established by combining wavelength modulation and direct absorption spectroscopy (WM-DAS) with continuous wave cavity ringdown spectroscopy (CW-CRDS). This spectrometer combines the benefits of absolute concentration measurements, w...

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Bibliographic Details
Main Authors: Zhen Wang, Yanjun Du, Yanjun Ding, Zhimin Peng
Format: Article
Language:English
Published: MDPI AG 2020-01-01
Series:Sensors
Subjects:
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Online Access:https://www.mdpi.com/1424-8220/20/3/585