Figure 1

Schematic drawing of PMA and corresponding fabrication process. (a) The composition of PMA with pod-like nanostructures. The proposed pod-like nanostructures is composed of a SiO2 layer on Si substrate, an optical nanocomposite (Au/SiO2) layer and followed by a cover layer (Au) from bottom to the top. (b) Fabrication process of proposed PMA.