%0 Journal Article %T Wave Propagation in Nanocomposite Materials %A Pierre Hillion %J Journal of Electromagnetic Analysis and Applications %P 411-417 %@ 1942-0749 %D 2010 %I Scientific Research Publishing %R 10.4236/jemaa.2010.27053 %X Electromagnetic wave propagation is first analyzed in a composite material mde of chiral nano-inclusions embedded in a dielectric, with the help of Maxwell-Garnett formula for permittivity and permeability and its reciprocal for chirality. Then, this composite material appears as an homo-geneous isotropic chiral medium which may be described by the Post constitutive relations. We analyze the propagation of an harmonic plane wave in such a medium and we show that two different modes can propagate. We also discuss harmonic plane wave scattering on a semi-infinite chiral composite medium. Then, still in the frame of Maxwell-Garnett theory, the propagation of TE and TM fields is investigated in a periodic material made of nano dots immersed in a dielectric. The periodic fields are solutions of a Mathieu equation and such a material behaves as a diffraction grating. %K Composite Materials %K Maxwell-Garnett %K Constitutive Relations %K TE TM Fields %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=2331