Abstract

Anderson localization in random potential fields is one of most fundamental problems that plays an important role in a number of physical phenomena [1]. It is well known that in 1D and 2D systems with non-correlated, macroscopically homogeneous random potential distributions, all states are exponentially localized. In this paper we show that the introduction of short-range correlations in random metal-dielectric composites results in the presence of delocalized states in the spectrum. We study in detail important statistical properties, such as the density of states, localization length, and the level spacing in percolation composites.

© 2003 Optical Society of America