Concentration measurements of benzene vapor have been performed with a minimum detectable concentration of 155 ppb (3σ) by using a compact laser instrument based on difference frequency generation in the 3-3.6 µm spectral region.
© 2008 Optical Society of America
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.0300) Spectroscopy : Spectroscopy
(300.6360) Spectroscopy : Spectroscopy, laser
J. Cousin, W. Chen, D. Bigour, S. Kassi, and D. Romanini, "Detection of Benzene Vapor at the ppb-Level Using a Difference-Frequency Generation-Based Laser Instrument Operating in the 3 µm Region," in Digital Holography and Three-Dimensional Imaging, OSA Technical Digest (CD) (Optical Society of America, 2008), paper JMA43.
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