Fig. 2.

(Media 1 ^{(488.1KB, MOV)} ) Simulation of the back-propagation of phase-conjugated light originating from a finite-width, CW plane wave virtual light source. A CW Gaussian beam (wavelength λ = 532 nm, beam width = 10 μm) impinging a scattering medium is simulated. 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 (green line) is compared to light just emitted from the virtual light source (black thin line) with a root-mean-square error of 7.8%.