Electrochemical control of strong coupling states between localized surface plasmons and molecule excitons for Raman enhancement

2017 ◽  
Vol 205 ◽  
pp. 261-269 ◽  
Author(s):  
Hiro Minamimoto ◽  
Fumiya Kato ◽  
Fumika Nagasawa ◽  
Mai Takase ◽  
Kei Murakoshi
Keyword(s):  
Raman Scattering ◽  
Surface Plasmons ◽  
Strong Coupling ◽  
Metal Nanostructures ◽  
Localized Surface Plasmons ◽  
Strongly Coupled ◽  
Raman Enhancement ◽  
Surface Enhanced Raman ◽  
Electrochemical Control ◽  
Enhanced Raman Scattering

The intensity of Raman scattering from dye molecules strongly coupled with localized surface plasmons of metal nanostructures was controlled by the electrochemical potential. Through in situ electrochemical extinction and surface-enhanced Raman scattering measurements, it is found that the redox state of the molecules affects the coupling strength, leading to the change in the intensity of the Raman scattering. Analysis of the Raman spectrum provides information on the molecules in strong coupling states showing effective enhancement of Raman scattering.

Computational electromagnetics in plasmonic nanostructures

2021 ◽  
Author(s):  
Amirmostafa Amirjani ◽  
Sayed Khatiboleslam Sadrnezhaad
Keyword(s):  
Solar Cells ◽  
Electric Field ◽  
Raman Scattering ◽  
Surface Plasmons ◽  
Computational Electromagnetics ◽  
Plasmonic Nanostructures ◽  
Localized Surface Plasmons ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Plasmonic nanostructures have emerging applications in solar cells, photodynamic therapies, surface-enhanced Raman scattering detection, and photocatalysis due to the excitation of localized surface plasmons. The exciting electric field results from...

Sign in / Sign up

Export Citation Format

Share Document