Figure 1From: Optical properties of Ni and Cu nanowire arrays and Ni/Cu superlattice nanowire arraysSchematic diagram of Ni or Cu nanowire arrays in porous anodic alumina membrane. In the measurement of optical reflection spectrum, the incident light is set at a 45° angle to the sample surface, and the emergent light beam is also at a 45° angle to the sample surface.Back to article page