We present a broadband quantum cascade laser-based spectroscopic system covering the region between 850 and 1250 cm-1. Its robust multipass cavity ensures a constant interaction length over the entire spectral region. The device enables the detection and identification of numerous molecules present in a complex gas mixture without any pre-treatment in two minutes. We demonstrate that we can detect sub-ppmv concentration of acetone in presence of 2% of water at the same wavenumber region.

doi.org/10.1364/OE.22.018299, hdl.handle.net/1765/56536
Optics Express
Department of Pediatrics

Reyes-Reyes, A., Hou, Z., van Mastrigt, E., Horsten, R., de Jongste, J., Pijnenburg, M., … Bhattacharya, N. (2014). Multicomponent gas analysis using broadband quantum cascade laser spectroscopy. Optics Express, 22(15), 18299–18309. doi:10.1364/OE.22.018299