Finite-difference-time-domain analysis of optical properties of ordered nano-dots array fabricated with nano plastic forming

Abstract

The optical properties of metallic nano-dots are widely used for various optical, electrical and biomedical devices. In this paper, the optical properties of the ordered gold nano-dots array fabricated with the nano plastic forming are investigated by experiments and the finite-difference-time-domain simulation. The simulation results demonstrate that the transmittance spectra of the ordered gold nano-dots array exhibit a unique light absorption behaviour due to the localized surface plasmon resonance and a clear red shift with increasing the diameter of the nano-dot.