Mid-infrared Photon Localization Using Two Kinds of Mid-infrared Materials as Random Scatterers

We report on some theoretical results of the photon localization parameter in the transparent matrix in which there are constant-high-refractive-index scatterers or anomalous dispersive dielectrics (ADD) scatterers in the mid-infrared region. Strong photon localization appears when the relative refractive index m is large, and predominant backscattering occurs when m > 3.1. The roles of the matrices on photon localization are found to be very different in two kinds of random media.