Phonon confinement and plasmon-phonon interaction in nanowire based quantum wells
arXiv:1101.4847 · doi:10.1103/PhysRevB.83.245327
Abstract
Resonant Raman spectroscopy is realized on closely spaced nanowire based quantum wells. Phonon quantization consistent with 2.4 nm thick quantum wells is observed, in agreement with cross-section transmission electron microscopy measurements and photoluminescence experiments. The creation of a high density plasma within the quantized structures is demonstrated by the observation of coupled plasmon-phonon modes. The density of the plasma and thereby the plasmon-phonon interaction is controlled with the excitation power. This work represents a base for further studies on confined high density charge systems in nanowires.
References in corpus (5)
- Structural and optical properties of high quality zinc-blende/wurtzite GaAs hetero-nanowires
- Raman spectroscopy of wurtzite and zinc-blende GaAs nanowires: polarization dependence, selection rules and strain effects
- Direct correlation of crystal structure and optical properties in wurtzite/zinc-blende GaAs nanowire heterostructures
- Magnetic states in prismatic core multishell nanowires
- Cylindrical Two-Dimensional Electron Gas in a Transverse Magnetic Field