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Multiplex Molecular Fingerprinting with a Mid-Infrared Cr2+:ZnSe Femtosecond Laser

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A 130-fs Cr2+:ZnSe laser is used to record, in 13 s, molecular spectra covering simultaneously 135 nm at 3.6 GHz resolution. The high signal-to-noise ratio of 3800 suggests 0.2 ppbv detection level for HF molecule.

© 2008 Optical Society of America

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