Open AccessControlling plasmon propagation and enhancement via reducing agent in wet chemistry synthesized silver nanowires
Author(s) -
Michał Ćwik,
Karolina Sulowska,
Dorota Buczyńska,
Ewa Roźniecka,
Martyna Domagalska,
Sebastian Maćkowski,
JoaniedziółkaJönsson
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.412903
Subject(s) - nanowire , plasmon , materials science , surface plasmon polariton , surface plasmon , nanotechnology , nanostructure , fluorescence , surface plasmon resonance , optoelectronics , optics , nanoparticle , physics
Silver nanowires with varying diameters and submillimeter lengths were obtained by changing a reducing agent used during hydrothermal synthesis. The control over the nanowire diameter turns out to play a critical role in determining their plasmonic properties, including fluorescence enhancement and surface plasmon polariton propagation. Advanced fluorescence imaging of hybrid nanostructures assembled of silver nanowires and photoactive proteins indicates longer propagation lengths for nanowires featuring larger diameters. At the same time, with increasing diameter of the nanowires, we measure a substantial reduction of fluorescence enhancement. The results point at possible ways to control the influence of plasmon excitations in silver nanowires by tuning their morphology.