We report on the development of a Faraday rotation spectroscopy instrument using a DFB diode laser operating at 2.8 μm for the hydroxyl (OH) radical detection with a 1σ detection limit of 8.2×10^8 OH radicals/cm3.
© 2011 OSA
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6380) Spectroscopy : Spectroscopy, modulation
(010.0280) Atmospheric and oceanic optics : Remote sensing and sensors
W. Zhao, G. Wysocki, W. Chen, E. Fertein, D. Le Coq, D. Petitprez, and W. Zhang, "Shot-Noise Limited Sensitive Detection of OH Radicals by Faraday Rotation Spectroscopy at 2.8 μm," in CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper CThCC4.
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