We report the dynamic control of plasmon-exciton coupling in Au nanodisk arrays adsorbed with J-aggregate molecules by incident angle of light. The angle-resolved spectra of an array of bare Au nanodisks exhibit continuous shifting of localized surface plasmon resonances. This characteristic enables the production of real-time, controllable spectral overlaps between molecular and plasmonic resonances, and the efficient measurement of plasmon-exciton coupling as a function of wavelength with one or fewer nanodisk arrays. Experimental observations of varying plasmon-exciton coupling match with coupled dipole approximation calculations.
|Original language||English (US)|
|State||Published - Jan 31 2011|
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This research was supported by the Air Force Office of Scientific Research (FA9550-08-1-0349), the National Science Foundation (ECCS-0801922, ECCS-0609128, and ECCS-0609128), and the Penn State Center for Nanoscale Science (MRSEC). Components of this workwere conducted at the Pennsylvania State University node of the NSF-funded NationalNanotechnology Infrastructure Network. Y. B. Z. recognizes the support from KAUST ScholarAward and the Founder’s Prize and Grant of the American Academy of Mechanics.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.