Abstract:
We study wave propagation in mixed, 1D disordered stacks of alternating right- and left-handed layers
and reveal that the introduction of metamaterials substantially suppresses Anderson localization. At long
wavelengths, the localization length in mixed stacks is orders of magnitude larger than for normal
structures, proportional to the sixth power of the wavelength, in contrast to the usual quadratic wavelength
dependence of normal systems. Suppression of localization is also exemplified in long-wavelength
resonances which largely disappear when left-handed materials are introduced.
