GaAs-Based Quantum Well Exciton-Polaritons beyond 1 μm

• Authors: M. Pieczarka , P. Podemski , A. Musiał , K. Ryczko , G. Sęk , J. Misiewicz , F. Langer , S. Höfling , M. Kamp , A. Forchel
• Languages of publication: EN

Abstracts

EN

Realization of the Bose-Einstein condensate can provide a way for creation of an inversion-free coherent light emitter with ultra-low threshold power. The currently considered solutions provide polaritonic emitters in a spectral range far below 1 μm limiting their application potential. Hereby, we present optical studies of InGaAs/GaAs based quantum well in a cavity structure exhibiting polaritonic eigenmodes from 5 to 160 K at a record wavelength exceeding 1 μm. The obtained Rabi splitting of 7 meV was almost constant with temperature, and the resulting coupling constant is close to the calculated QW exciton binding energy. This indicates the very strong coupling conditions explaining the observation of polaritons at temperatures where the exciton dissociation is already expected, and allows predicting that room temperature polaritons could still be formed in this kind of a system.

Keywords

EN

73.21.-b; 78.67.-n; 78.67.Pt

Discipline

• 78.67.Pt: Multilayers; superlattices; photonic structures; metamaterials(see also 81.05.Xj, Metamaterials for chiral, bianisotropic and other complex media)
• 73.21.-b: Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems(for electron states in nanoscale materials, see 73.22.-f)
• 78.67.-n: Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures(for magnetic properties of nanostructures, see 75.75.-c; for electronic transport in nanoscale structures, see 73.63.-b; for mechanical properties of nanoscale systems, see 62.25.-g)

• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 124
• Issue: 5
• Pages: 817-820

Dates

published

2013-11

Contributors

author

M. Pieczarka

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

P. Podemski

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

A. Musiał

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

K. Ryczko

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

G. Sęk

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

J. Misiewicz

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

F. Langer

• Technische Physik, University of Würzburg and Wilhelm-Conrad-Röntgen-Research Center, for Complex Material Systems (RCCM), Am Hubland, D-97074 Würzburg, Germany

author

S. Höfling

• Technische Physik, University of Würzburg and Wilhelm-Conrad-Röntgen-Research Center, for Complex Material Systems (RCCM), Am Hubland, D-97074 Würzburg, Germany

author

M. Kamp

• Technische Physik, University of Würzburg and Wilhelm-Conrad-Röntgen-Research Center, for Complex Material Systems (RCCM), Am Hubland, D-97074 Würzburg, Germany

author

A. Forchel

• Technische Physik, University of Würzburg and Wilhelm-Conrad-Röntgen-Research Center, for Complex Material Systems (RCCM), Am Hubland, D-97074 Würzburg, Germany

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Identifiers

DOI

10.12693/APhysPolA.124.817