FTIR SPECTROMETERS UTILIZING MID-INFRARED QUANTUM CASCADE LASERS
Witinski, Mark F.
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Publisher:Ohio State University
A Fabry-Perot Quantum Cascade Laser source can be used in conjunction with a Fourier Transform Infrared Spectrometer to perform spectroscopic experiments that require orders of magnitude more photons than are emitted by a thermally radiant blackbody source. Three proof-of-concept experiments including laser transmission through liquids, transmission through gases over long distances, and reflection from powders and tablets demonstrated how the increased brightness of a Quantum Cascade Laser enables many important avenues in gas and condensed phase analysis.
Author Institution: School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, 02138; Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts, 02138; Bruker Optics, 19 Fortune Drive, Billerica, Massachusetts, 01821
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