CW EC-QCL-based sensor for simultaneous detection of H2O, HDO, N2O and CH4 using multi-pass absorption spectroscopy.
Yu Y, Sanchez NP, Griffin RJ, Tittel FK. CW EC-QCL-based sensor for simultaneous detection of H2O, HDO, N2O and CH4 using multi-pass absorption spectroscopy. Opt Express. 2016 May 16; 24(10):10391-401.