Electromagnetically induced transparency spectroscopy.

@article{Eilam2012ElectromagneticallyIT,
  title={Electromagnetically induced transparency spectroscopy.},
  author={Asaf Eilam and Evgeny A. Shapiro and Moshe Shapiro},
  journal={The Journal of chemical physics},
  year={2012},
  volume={136 6},
  pages={
          064201
        }
}
We propose a method based on the electromagnetically induced transparency (EIT) phenomenon for the detection of molecules which exist as a small minority in the presence of a majority of absorbers. The EIT effect we employ effectively eliminates the absorption of the majority species in the spectral region where it overlaps with the absorption of the minority species. The method can also be used to enhance local-modes transitions which overlap spectrally with a background of other local-modes… 
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