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Conferences > CLEO_SI > 2016 > STu3H > STu3H.2

Measuring Isotope Ratios of Large Molecules Using a Swept External Cavity Quantum Cascade Laser

B. E. Brumfield and M.C. Phillips

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Abstract

We measure isotope ratios for species with broadband absorption features using a swept external cavity quantum cascade laser. Isotopic precisions of ~1‰ (per mil) are demonstrated for methanol (MeOH/MeOD) and ethanol (EtOH/EtOD) vapor.

© 2016 Optical Society of America

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