The dynamic three-dimensional Anderson localization of optical fields in active percolating systems

Abstract

We study three-dimensional optical Anderson localization in medium with a percolating disorder, where the percolating clusters are filled by the light nanoemitters in the excited state. The peculiarity of situation is that in such materials the field clusters join a fractal radiating system where the light is both emitted and scattered by the inhomogeneity of clusters. Our numerical FDTD simulations found that in this nonlinear compound the number of localized field bunches drastically increases after the lasing starts. At longer times the bunches leave nonlinear percolating structure and are radiated from the medium. Monitoring the output of system allows to observe experimentally such dynamic localized bunches in three-dimensional setup.