activity
20162026
most citedOne-dimensional plasmonic hotspots located between silver nanowire dimers evaluated by surface-enhanced resonance Raman scattering

55 citations · 168 across the 16 of their papers we have counts for

collaborators

17 papers

physics.optics2026

Electromagnetic coupling between subradiant plasmons and dye molecular excitons analyzed by spectral changes in ultrafast surface-enhanced fluorescence

Tamitake Itoh, Yuko S. Yamamoto

Electromagnetic (EM) coupling between molecular exciton and plasmon has been studied using in Rayleigh scattering or extinction spectroscopy. However, evaluating EM coupling involv…

physics.optics2025★ 1 cited

Ultrabroad resonance of localized plasmon on a nanoparticle coupled with surface plasmon on a nanowire enabling two-photon excited emission via continuous-wave laser

Tamitake Itoh, Yuko S. Yamamoto

This study found that plasmonic hotspots (HSs) between silver nanoparticles (NPs) and silver nanowires (NWs) generated two-photon excited emissions, including hyper-Rayleigh, hyper…

physics.chem-ph2025

Surface-enhanced Raman scattering and density functional theory study of selected-lanthanide-citrate complexes (lanthanide: La, Ce, Pr, Nd, Sm, Eu, and Gd)

Hao Jin, Tamitake Itoh, Yuko S. Yamamoto

In this study, we combined the surface-enhanced Raman scattering (SERS) with density functional theory (DFT) calculations to investigate the SERS spectra of lanthanide (Ln)-citrate…

physics.optics2024★ 4 cited

Plasmon-enhanced two photon excited emission from edges of one-dimensional plasmonic hotspots with continuous-wave laser excitation

Tamitake Itoh, Yuko S. Yamamoto

One-dimensional junctions between parallel and closely arranged multiple silver nanowires (NWs) exhibit a large electromagnetic (EM) enhancement factor (FR) owing to both localized…

physics.optics2023★ 8 cited

Electromagnetic enhancement of one-dimensional plasmonic hotspots along silver nanowire dimer examined by ultrafast surface enhanced fluorescence

Tamitake Itoh, Yuko S. Yamamoto

We investigated the spectral properties of electromagnetic (EM) enhancement of one-dimensional hotspots (1D HSs) generated between silver nanowire (NW) dimers. The EM enhancement s…

physics.chem-ph2023

Classification of La3+ and Gd3+ rare earth ions using surface-enhanced Raman scattering

Hao Jin, Tamitake Itoh, Yuko S. Yamamoto

In this study, surface-enhanced Raman scattering (SERS) spectra of different rare earth (RE) ion-citrate complexes were investigated for the first time for the qualitative classifi…