Work

Geometric Sensitivity of Mode Hybridization in Symmetric and Asymmetric Nanoscale Dimers

Year: 2024

Type: conference-paper

Abstract: Nanoparticles exhibit optical and infrared sensitivity useful in optoelectronics, spectroscopy, and sensing. Capacitative and conductive coupling induces dipolar and charge transfer plasmon modes in nanoscale dimers. Optical and infrared activity of these hybridized modes are exquisitely sensitive to geometric features of the nanoscale dimer. This study examined spectra for 7 to 8-nanometer dimers with symmetric or asymmetric radii using discrete dipole approximation. Variations in optical and infrared activity were attributable to field localization due to geometry-induced hybridization. Methods herein are useful guides to design dimers for optoelectronic, spectroscopic, and sensing applications.

Source: IEEE Nanotechnology Materials and Devices Conference (NMDC)

DOI: 10.1109/nmdc58214.2024.10894519

Authors: D. Keith Roper, Ricardo R. Romo

Institution: Utah State University

Language: English

Topic: Plasmonic and Surface Plasmon Research

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: National Eye Institute

Award: A versatile lens architecture to shape visible light