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Dynamic Tuning of Plasmon–Exciton Coupling in Arrays of Nanodisk–J‐aggregate Complexes
Author(s) -
Zheng Yue Bing,
Juluri Bala Krishna,
Lin Jensen Lin,
Ahmed Daniel,
Lu Mengqian,
Jensen Lasse,
Huang Tony Jun
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201000251
Subject(s) - materials science , plasmon , exciton , surface plasmon resonance , coupling (piping) , resonance (particle physics) , dipole , molecular physics , localized surface plasmon , aggregate (composite) , discrete dipole approximation , surface plasmon , optoelectronics , optics , condensed matter physics , nanoparticle , atomic physics , nanotechnology , physics , quantum mechanics , metallurgy
Dynamic tuning of plasmon–exciton resonant coupling in arrays of nanodisk–J‐aggregate complexes is demonstrated. The angle‐resolved spectra of an array of bare gold nanodisks exhibit continuous shifting of localized surface plasmon resonance. This characteristic enables the production of real‐time, controllable spectral overlap between molecular resonance and plasmonic resonance. The resonant interaction strength as a function of spectral overlap is explored and the coupling strength changes with the incident angle of a probe light, in accord with simulations based on coupled dipole approximation method.