Rapid dendritic growth and solute trapping within undercooled ternary Ni-5%Cu-5%Mo alloy

In this report, we present experimental results of transmittance through nanohole arrays created onto Au films on glass substrates. 110-nm-thick Au films with arrays of nanoholes were fabricated by using self-assembled polystyrene spheres, of which the diameters were reduced to designed values on site by dry etching, as a template. Transmission spectra of the nanostructured Au films show strong enhancement (more than 45%) in a wide range from 300 nm to 1600 nm, the measurement wavelength range. Besides a peak observed at around 500 nm in all spectra, a wider peak on the longer wavelength side was observed, which shifted to longer wavelength when periodicities of the hole arrays were increased.