We report a simple method for fabricating metal nanoarrays with DNA templates. After DNA-stretching and fixation on surfaces, highly aligned and integrated Au nanoarrays were fabricated via electroless depositions of Au on DNA. The direct visualization of metallic nanoarrays and interaction with optical near-filed have been studied by atomic force microscopy (AFM) and scanning near-field optical microscopy (SNOM). The resulting metallic nanoarrays are attractive prospects in nano-optics and an important step toward the construction of plasmon waveguids.
