Electromagnetic scattering in two-dimensional dissipative systems without localization

Two-dimensional microwave propagation is experimentally studied in strongly scattering and absorbing random media. The results are compared with adapted theories of Genack, Ferrari, and Kaveh, as well as with classical diffusion theory. The diffusion constants and propagation velocities are determined. Most metallic or semiconductor system’s localization effects, if they exist, are so weak that a classical description of the system is appropriate within measuring resolution. © 1996 The American Physical Society.