[10p-E201-1~19] 3.11 Nanoscale optical science and near-field optics

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10p-E201-12] Moleculer size evaluation by surface enhanced Raman scattering using nanogap Au nanoparticles

〇(M2)Senri Yoshitake¹, Nozomi Watanabe¹, Keishi Suga², Kanta Adachi¹, Nobutomo Nakamura¹ (1.The Univ. of Osaka, 2.Tohoku Univ.)

Keywords:

Surface enhanced Raman scattering,Nanogap nanoparticle,Resistive spectroscopy

In surface-enhanced Raman scattering (SERS) using nanogap nanoparticles, molecular detection relies on the phenomenon where scattered light is significantly enhanced when target molecules enter the enhanced electric field formed within the interparticle gaps. In contrast to such previous studies, in this study we fabricated Au nanoparticles with varying gap sizes on glass substrates and attempted to evaluate molecular sizes by utilizing the phenomenon that the amplification of scattered light is reduced in gaps smaller than the target molecule. We will present the results of this study.