Varying the effective refractive index to measure optical transport in random media.

@article{Faez2009VaryingTE,
  title={Varying the effective refractive index to measure optical transport in random media.},
  author={S. Faez and P. M. Johnson and A. Lagendijk},
  journal={Physical review letters},
  year={2009},
  volume={103 5},
  pages={
          053903
        }
}
We introduce a new approach for measuring both the effective medium and the transport properties of light propagation in heterogeneous media. Our method utilizes the conceptual equivalence of frequency variation with a change in the effective index of refraction. Experimentally, we measure intensity correlations via spectrally resolved refractive index tuning, controlling the latter via changes in the ambient pressure. Our experimental results perfectly match a generalized transport theory that… Expand

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