English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Strongly coupled plasmon-exciton systems offer promising applications innanooptics. The classification of the coupling regime is currently debated bothfrom experimental and theoretical perspectives. We present a method tounambiguously identify strong coupling in plasmon-exciton core-shellnanoparticles by measuring true absorption spectra of the system. Weinvestigate the coupling of excitons in J-aggregates to the localized surfaceplasmon polaritons on gold nanospheres and nanorods by fine-tuning the plasmonresonance via layer-by-layer deposition of polyelectrolytes. While bothstructures show a characteristic anticrossing in extinction and scatteringexperiments, the careful assessment of the systems' light absorption revealsthat strong coupling of the plasmon to the exciton is only present in thenanorod system. In a phenomenological model of two classical coupledoscillators, intermediate coupling strengths split up only the resonancefrequency of the light-driven oscillator, while the other one still dissipatesenergy at its original frequency. Only in the strong-coupling limit, bothoscillators split up the frequencies at which they dissipate energy,qualitatively explaining our experimental finding.

Signatures of strong coupling on nanoparticles: Revealing absorption anticrossing by tuning the dielectric environment