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Varying the density of the scattering medium. The amplitude profile of the phase-conjugated light reaching the target position (as shown in Fig. 5) is compared for various N (number of dielectric cylinders within the scattering medium). Each profile is normalized by its maximum value; from bottom to top: N = 0, 100, 200, 600, and 676. For a denser scattering medium, the amount of light reaching the target position decreases.
