Optic acoustic effects in lattice packings (opal matrices as metamaterial)

Experimental results of the investigations of the photon-phonon interaction in orderly packed silica dioxide (opal matrices) and nanocomposites on their base are presented. Effective conversion of laser light into acoustic vibrations of nanospheres, composing matrix, is shown to exist in such structures. Frequency shifts of the scattered light components are shown to correspond to the nanospheres vibrations eigenvalues. Stimulated scatterings of light generation in opal matrices dependence on the band-gap position is investigated