scholarly journals Reproduction of surface-enhanced resonant Raman scattering and fluorescence spectra of a strong coupling system composed of a single silver nanoparticle dimer and a few dye molecules

2018 ◽  
Vol 149 (24) ◽  
pp. 244701 ◽  
Author(s):  
Tamitake Itoh ◽  
Yuko S. Yamamoto
Keyword(s):  
Raman Scattering ◽  
Strong Coupling ◽  
Silver Nanoparticle ◽  
Fluorescence Spectra ◽  
Dye Molecules ◽  
Coupling System ◽  
Surface Enhanced ◽  
Resonant Raman ◽  
Resonant Raman Scattering

scholarly journals Quantum theory of surface-enhanced resonant Raman scattering (SERRS) of molecules in strongly coupled plasmon–exciton systems

Nanophotonics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 295-308 ◽  
Author(s):  
Tomáš Neuman ◽  
Javier Aizpurua ◽  
Ruben Esteban
Keyword(s):  
Raman Scattering ◽  
Degrees Of Freedom ◽  
Strong Coupling Regime ◽  
Strongly Coupled ◽  
Surface Enhanced ◽  
Exciton Polaritons ◽  
Surface Enhanced Raman ◽  
Resonant Raman ◽  
Resonant Raman Scattering ◽  
Raman Scattering Spectra

AbstractLocalised surface plasmons can couple strongly with the electronic transitions of a molecule, inducing new hybridised states of light and matter, the plasmon–exciton polaritons. Furthermore, molecules support vibrational degrees of freedom that interact with the electronic levels, giving rise to inelastic resonant Raman scattering under coherent laser illumination. Here we show the influence of strong plasmon–exciton coupling on resonant Raman processes that populate the vibrational states of the molecule and that lead to the characteristic surface-enhanced Raman scattering spectra. We develop analytical expressions that give insight into these processes for the case of moderate illumination intensity, weak electron–vibration coupling and no dephasing. These expressions help us to elucidate the twofold role of plasmon–exciton polaritons to pump the system efficiently and to enhance the Raman emission. Our results show a close analogy with the optomechanical process described for off-resonant Raman scattering but with a difference in the resonant reservoir. We also use full numerical calculations to study the effects reaching beyond these approximations and discuss the interplay between the fluorescence background and the Raman lines. Our results allow for better understanding and exploitation of the strong coupling regime in vibrational pumping and in the surface-enhanced resonant Raman scattering signal.

Re-radiation Enhancement in Polarized Surface-Enhanced Resonant Raman Scattering of Randomly Oriented Molecules on Self-Organized Gold Nanowires

ACS Nano ◽  
2011 ◽  
Vol 5 (7) ◽  
pp. 5945-5956 ◽  
Author(s):  
Barbara Fazio ◽  
Cristiano D’Andrea ◽  
Francesco Bonaccorso ◽  
Alessia Irrera ◽  
Giuseppe Calogero ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Gold Nanowires ◽  
Self Organized ◽  
Oriented Molecules ◽  
Radiation Enhancement ◽  
Surface Enhanced ◽  
Resonant Raman ◽  
Resonant Raman Scattering ◽  
Polarized Surface

scholarly journals Quantitative Surface-Enhanced Resonant Raman Scattering Multiplexing of Biocompatible Gold Nanostars for in Vitro and ex Vivo Detection

2012 ◽  
Vol 85 (1) ◽  
pp. 208-212 ◽  
Author(s):  
Hsiangkuo Yuan ◽  
Yang Liu ◽  
Andrew M. Fales ◽  
You Leo Li ◽  
Jesse Liu ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Ex Vivo ◽  
Gold Nanostars ◽  
Surface Enhanced ◽  
Resonant Raman ◽  
Resonant Raman Scattering

scholarly journals Surface enhanced resonant Raman scattering in hybrid MoSe2@Au nanostructures

2018 ◽  
Vol 26 (22) ◽  
pp. 29411 ◽  
Author(s):  
Inès Abid ◽  
Weibing Chen ◽  
Jiangtan Yuan ◽  
Sina Najmaei ◽  
Emil C. Peñafiel ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced ◽  
Resonant Raman ◽  
Resonant Raman Scattering
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