Experimental and simulation extinction spectra of Au nanoarrays prepared by pulse AC and normal AC methods. (a, b) Experimental extinction spectra of the Au nanoarrays grown in AAO prepared using H2SO4 and H2C2O4, respectively. (c) Simulation extinction spectra of the uniform and nonuniform Au nanoarrays with period a = 110 nm and diameter d = 34 nm. The length of the uniform nanoarray is set to be 150 nm. The simulation unit cell of the nonuniform nanoarray contains six nanowires with the length L = 50, 75, 100, 125, 150, and 200 nm.
Xue et al. Nanoscale Research Letters 2013 8:295 doi:10.1186/1556-276X-8-295