[10p-Z17-1~19] 3.12 Nanoscale optical science and near-field optics

[10p-Z17-13] Surface Plasmon Color Filter with Random Ag Nano-Hemisphere on Mirror

〇Koki Matsuda¹, Ryo Hasegawa¹, Tetsuya Matsuyama¹, Kenji Wada¹, Koichi Okamoto¹ (1.Osaka Pref. Univ.)

Keywords:Localized Surface Plasmon Resonance

Localized surface plasmon (LSPR) resonates with the size and shape of the metal nanoparticles (NPs), and The peak wavelength can be controlled. We have shown that the two-dimensional stacked Ag-NPs array structure on a metal substrate can be used to control plasmonic colors available1). Furthermore, the same effect can be achieved when random metal nanostructures are formed on a mirror-like substrate by heat treatment. 2). By using this random structure, we report that the transmission spectrum caused by LSPR could be controlled.