Strong coupling between Tamm plasmon and QW exciton

We report on the strong coupling between a Tamm plasmon mode and excitons from inorganic quantum wells. The sample is formed by an AlAs/GaAlAs Bragg reflector containing InGaAs QWs in its high refractive index layers, on top of which a thin silver film is deposited. Angle resolved reflectometry expe...

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Bibliographic Details
Published in:Superlattices and microstructures 2011-03, Vol.49 (3), p.224-228
Main Authors: Homeyer, Estelle, Symonds, Clémentine, Lemaître, Aristide, Plenet, Jean-Claude, Bellessa, Joel
Format: Article
Language:English
Subjects:
Angle of reflection
Bragg reflector
Dispersions
Excitation
Inorganic semiconductor
Joining
Plasmon
Plasmons
Polariton
Polaritons
Silver
Strong coupling
Superlattices
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Summary:We report on the strong coupling between a Tamm plasmon mode and excitons from inorganic quantum wells. The sample is formed by an AlAs/GaAlAs Bragg reflector containing InGaAs QWs in its high refractive index layers, on top of which a thin silver film is deposited. Angle resolved reflectometry experiments at low temperature (77 K) show a clear anticrossing in the dispersion relations, evidencing the strong coupling regime. The Rabi splitting amounts to 11.5 meV. Emission from low and high energy Tamm plasmon/exciton polaritons is also demonstrated. Experimental data are in very good agreement with transfer matrix simulations.
ISSN:0749-6036
1096-3677
DOI:10.1016/j.spmi.2010.06.007