Characterization and Application of Surface Plasmon-Enhanced Optical Diffraction from Electrodeposited Gold Nanowire Arrays

摘要: Arrays of gold nanowires formed by the process lithographically patterned nanowire electrodeposition (LPNE) were characterized a combination SEM, polarized UV–visible absorption spectroscopy, and optical diffraction measurements. A transverse localized surface plasmon resonance (LSPR) was observed for arrays with an maximum (λmax) that varied width. Transmission measurements measured even odd orders creating alternating, out-of-phase sinusoidal intensity pattern characteristic LPNE arrays. The intensities order maxima strongest width 115 ± 10 nm; this exhibit λmax 635 nm, verifying LSPR has enhanced signal. Real-time total internal reflection used to monitor in situ silver monolayers onto n...