[6p-PA3-1~22] 3.12 Nanoscale optical science and near-field optics

[6p-PA3-22] Single Crystal Silver Thin Films on Mica as Flexible Surface-Enhanced Raman Spectroscopy (SERS) Substrates

Atsuki Daikoku¹, Ryosuke Ishida¹, 〇Takashi Uchino¹ (1.Tohoku Inst. Tech.)

Keywords:Surface-enhanced Raman spectroscopy, silver thin film, single crystal

Surface-enhanced Raman spectroscopy (SERS) is a powerful spectroscopy which can detect and identify single molecules using localized surface plasmon resonance and attracts attention in recent years as a technique for detecting molecules with high sensitivity. Gold nanoparticles have been traditionally used as an effective SERS substrate. However, if the silver thin film can be employed, the fabrication of the highly sensitive SERS substrates will be more simple and inexpensive. In this study, we fabricated single crystal silver thin film with voids and investigated SERS effect by surface plasmon polariton.