The performance of a rapidly swept external cavity quantum cascade laser (ECQCL) system combined with an open-path Herriott cell was evaluated for time-resolved measurements of chemical species with broad and narrow absorption spectra. A spectral window spanning 1278 – 1390 cm-1 was acquired at a 200 Hz acquisition rate, corresponding to a tuning rate of 2x104 cm-1/s, with a spectral resolution of 0.2 cm-1. The capability of the ECQCL to measure
Revised: March 2, 2016 |
Published: September 17, 2015
Citation
Brumfield B.E., M.S. Taubman, J.D. Suter, and M.C. Phillips. 2015.Characterization of a Swept External Cavity Quantum Cascade Laser For Rapid Broadband Spectroscopy and Sensing.Optics Express 23, no. 20:25553-25569.PNNL-SA-111759.doi:10.1364/OE.23.025553