Presentation
5 October 2023 Tuning plasmonic coupling of nanocube dimers via nanoscale gap morphology
Yina Wu, Andrea Konečná, ShinHum Cho, Delia J. Milliron, Jordan A. Hachtel, F. Javier García de Abajo
Author Affiliations +
Abstract
Fluorine-doped indium oxide (IO) nanocubes separated by nanometric gaps constitute a versatile system hosting high-quality mid-infrared plasmons with potential application in optoelectronics and light harvesting. In this theory-experiment combined work, we predict large tunability of these hybridized plasmon modes by controlling the gap size and the dimensionality of the gap region. We confirm this prediction through electron energy-loss spectroscopy (EELS) measurements performed in a scanning transmission electron microscope (STEM). Our theorical-experimental results elucidate the influence of gap geometry on the coupled plasmons and field concentration in doped IO nanostructures, and further suggest exciting applications in plasmonic sensing and surface-enhanced spectroscopies.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yina Wu, Andrea Konečná, ShinHum Cho, Delia J. Milliron, Jordan A. Hachtel, and F. Javier García de Abajo "Tuning plasmonic coupling of nanocube dimers via nanoscale gap morphology", Proc. SPIE PC12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI, PC1264808 (5 October 2023); https://doi.org/10.1117/12.2676786
Advertisement
Advertisement
KEYWORDS
Plasmonics

Information operations

Plasmons

Spectroscopy

Nanoparticles

Nanostructures

Scanning transmission electron microscopy

Back to Top