A compact broadband cavity enhanced absorption spectrometer for detection of atmospheric NO(2) using light emitting diodes.

@article{Langridge2006ACB,
  title={A compact broadband cavity enhanced absorption spectrometer for detection of atmospheric NO(2) using light emitting diodes.},
  author={Justin M. Langridge and Stephen M. Ball and R. W. L. Jones},
  journal={The Analyst},
  year={2006},
  volume={131 8},
  pages={
          916-22
        }
}
A compact and low power detector has been developed for the in situ measurement of atmospheric NO(2) using broadband cavity enhanced absorption spectroscopy. Absorption by the O(2)-O(2) collisional pair was used to determine the cavity mirror reflectivity, thus enabling the retrieval of absolute absorber concentrations by differential spectral fitting techniques. Quantitative amounts of ambient NO(2) (between 3 and 32 parts per billion) were retrieved from spectra recorded in the presence of… CONTINUE READING
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