Phonon confinement and plasmon-phonon interaction in nanowire based quantum wells

Details Phonon confinement and plasmon-phonon interaction in nanowire based quantum wells Phonon confinement and plasmon-phonon interaction in nanowire based quantum wells

2011-01-25

arxiv.org/abs/1101.4847v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

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.

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