[17a-WL2_201-1~11] 3.11 Nanoscale optical science and near-field optics

9:00 AM - 9:15 AM JST(12:00 AM - 12:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17a-WL2_201-1] Fabrication of SERS Substrates using Colloidal Crystal Lithography

〇(B)Naruma Taki¹, Toshihiro Okamoto^2,1, Masanobu Haraguchi^2,1 (1.Tokushima Univ., 2.pLED,Tokushima Univ)

Keywords:

SERS,Nano Sphere Lithograpy

Although Surface-Enhanced Raman Scattering (SERS) is promising for sensing trace molecules, balancing signal stability with fabrication cost is difficult. We propose a solution using PS nanoneedles fabricated via reactive ion etching (RIE) of self-assembled polystyrene spheres. When coated with gold (Au), these nanoneedles demonstrated a 6-fold signal enhancement compared to a conventional planar Au film, offering a facile route for high-performance SERS substrates.