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Strong Light‐Molecule Coupling on Plasmonic Arrays of Different Symmetry
Author(s) -
Salomon Adi,
Wang Shaojun,
Hutchison James A.,
Genet Cyriaque,
Ebbesen Thomas W.
Publication year - 2013
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201200914
Subject(s) - plasmon , coupling (piping) , chemical physics , symmetry (geometry) , surface plasmon , molecular physics , molecule , nanostructure , degeneracy (biology) , materials science , porphyrin , optoelectronics , chemistry , nanotechnology , physics , photochemistry , quantum mechanics , bioinformatics , geometry , mathematics , metallurgy , biology
The strong coupling of porphyrin J‐aggregates to plasmonic nanostructures of different symmetry is investigated. The nanostructures of higher symmetry show the strongest interaction with the molecular layer, suggesting that surface plasmon mode degeneracy plays an important role in the coupling efficiency. At high coupling strengths a new, weakly dispersive mode appears which has recently been predicted theoretically to be due to long‐range energy transfer between molecules mediated by surface plasmons. These findings point to new ways for optimizing strong coupling and thereby realize its full potential for molecular and material science.