Fig. 3.

(Media 2 ^{(620.7KB, MOV)} ) Simulation of the propagation of phase-conjugated light originating from the speckle-like virtual light source. The speckle-like virtual source is modeled as an aggregate of 4 randomly positioned 0.66-μm-diameter point light sources. The 200-μm-by-300-μm scattering medium consists of 676 randomly positioned, 5-μm-diameter dielectric (n = 1.2) cylinders. Snapshots at various instances depicting light propagation through the scattering medium are shown: (a) 5000 time steps (0.25 ps), (b) 20000 time steps (1.00 ps), and (c) 40000 time steps (2.00 ps). (d): a 30um-by-30um zoomed-in view of (c). (e) The intensity profile of the back-propagated light reaching the virtual light source (blue line) is compared to light just emitted from the virtual light source (black thin line) with a root-mean-square error of 9.0%.