Experimental evidence for loop-type photon trajectories in random media with strong disorder

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Reference M.P. van Albada, D.S. Wiersma and A. Lagendijk: Experimental evidence for loop-type photon trajectories in random media with strong disorder In: OSA Proceedings on Advances in Optical Imaging and Photon Migration ; vol. 21 /ed. R.R. Alfano, Optical Society of America, 1994. - pp. 25-28

Strongly scattering media exhibit weak-localization enhancement factors below two in de helicity preserving channel. An explanation in terms of loop-type light paths is given.