TY  - JOUR
A1  - Stete, Felix
A1  - Schossau, Phillip
A1  - Bargheer, Matias
A1  - Koopman, Wouter-Willem Adriaan
T1  - Size-Dependent coupling of Hybrid Core-Shell Nanorods
BT  - Toward Single-Emitter Strong-Coupling
JF  - The journal of physical chemistry : C, Nanomaterials and interfaces
N2  - Owing to their ability of concentrating electromagnetic fields to subwavelength mode volumes, plasmonic nanoparticles foster extremely high light-matter coupling strengths reaching far into the strong-coupling regime of light matter interaction. In this article, we present an experimental investigation on the dependence of coupling strength on the geometrical size of the nanoparticle. The coupling strength for differently sized hybrid plasmon-core exciton-shell nanorods was extracted from the typical resonance anticrossing of these systems, obtained by controlled modification of the environment permittivity using layer-by-layer deposition of polyelectrolytes. The observed size dependence of the coupling strength can be explained by a simple model approximating the electromagnetic mode volume by the geometrical volume of the particle. On the basis of this model, the coupling strength for particles of arbitrary size can be predicted, including the particle size necessary to support single-emitter strong coupling.
Y1  - 2018
U6  - https://doi.org/10.1021/acs.jpcc.8b04204
SN  - 1932-7447
VL  - 122
IS  - 31
SP  - 17976
EP  - 17982
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - GEN
A1  - Stete, Felix
A1  - Schossau, Phillip Gerald
A1  - Koopman, Wouter-Willem Adriaan
A1  - Bargheer, Matias
T1  - Size Dependence of the Coupling Strength in Plasmon-Exciton Nanoparticles
T2  - Quantum Nano-Photonics
N2  - The coupling between molecular excitations and nanoparticles leads to promising applications. It is for example used to enhance the optical cross-section of molecules in surface enhanced Raman scattering, Purcell enhancement or plasmon enhanced dye lasers. In a coupled system new resonances emerge resulting from the original plasmon (ωpl) and exciton (ωex) resonances as
ω±=12(ωpl+ωex)±14(ωpl−ωex)2+g2−−−−−−−−−−−−−−−√,
(1)
where g is the coupling parameter. Hence, the new resonances show a separation of Δ = ω+ − ω− from which the coupling strength can be deduced from the minimum distance between the two resonances, Ω = Δ(ω+ = ω−).
Y1  - 2018
SN  - 978-94-024-1546-9
SN  - 978-94-024-1544-5
SN  - 978-94-024-1543-8
U6  - https://doi.org/10.1007/978-94-024-1544-5_26
SN  - 1871-465X
SP  - 381
EP  - 383
PB  - Springer
CY  - Dordrecht
ER  -