Rapid and Sensitive Quantification of Isotopic Mixtures Using a Rapidly-Swept External Cavity Quantum Cascade Laser

A rapidly-swept external-cavity quantum cascade laser with an open-path Herriott cell is used to quantify gas-phase chemical mixtures of D2O and HDO at a rate of 40 Hz (25-ms measurement time). The chemical mixtures were generated by evaporating D2O liquid near the open-path Herriott cell, allowing...

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Bibliographic Details
Main Authors: Brian E. Brumfield, Matthew S. Taubman, Mark C. Phillips
Format: Article
Language:English
Published: MDPI AG 2016-05-01
Series:Photonics
Subjects:
Online Access:http://www.mdpi.com/2304-6732/3/2/33