Square and Triangular Nanohole Array Architectures in Anodic Alumina

Abstract

The generation of hole array architectures with, for example, square or triangular patterns (see Figure) is achieved by controlling the spatial definition of the indentation sites for hole development in anodic porous alumina. The technique has potential for the fabrication of two-dimensional photonic crystals, or carbon nanotubes with triangular or square cross section.