[17p-WL2_201-1~16] 3.11 Nanoscale optical science and near-field optics

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[17p-WL2_201-11] Shape-Combination-Dependent Chiral SHG Properties in Vertically Aligned Au Nanoparticle Dimer Structures

〇Kohei Iijima¹, Masayoshi Kamiya¹, Atsushi Sugita¹ (1.Shizuoka Univ.)

Keywords:

Chiral Plasmonics,Nonlinear optics,Coupled plasmon effect

In this presentation, we report the chiral second-harmonic generation (SHG) properties of vertically arranged Au nanoparticle dimer structures. The dimers consist of combinations of rectangular rod-shaped and isosceles triangular Au nanoparticles. We observe pronounced circular-dichroic SHG signals originating from structures that are intrinsically chiral, independent of the relative particle arrangement.