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Complexity of two-dimensional quasimodes at the transition from weak scattering to Anderson localization
2009
Physical Review A. Atomic, Molecular, and Optical Physics
The spatial extension and complexity of the eigenfunctions of an open finite-size two-dimensional (2D) random system are systematically studied for a random collection of systems ranging from weakly scattering to localized. The eigenfunctions are obtained by introducing gain in the medium and pumping just above threshold. All lasing modes are found to correspond to quasimodes of the passive system, for all regimes of propagation. We demonstrate the existence of multipeaked quasimodes or
doi:10.1103/physreva.79.041802
fatcat:jpym7nay2jca5dd2mh2baeoaou