Simultaneous multi-laser, multi-species trace-level sensing of gas mixtures by rapidly swept continuous-wave cavity-ringdown spectroscopy.

@article{He2010SimultaneousMM,
  title={Simultaneous multi-laser, multi-species trace-level sensing of gas mixtures by rapidly swept continuous-wave cavity-ringdown spectroscopy.},
  author={Yabai He and Ruifeng Kan and Florian V. Englich and Wenqing Liu and B. J. Orr},
  journal={Optics express},
  year={2010},
  volume={18 19},
  pages={20059-71}
}
The greenhouse-gas molecules CO(2), CH(4), and H(2)O are detected in air within a few ms by a novel cavity-ringdown laser-absorption spectroscopy technique using a rapidly swept optical cavity and multi-wavelength coherent radiation from a set of pre-tuned near-infrared diode lasers. The performance of various types of tunable diode laser, on which this… CONTINUE READING