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arXiv · 1101.4847

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

Bernt Ketterer·Jordi Arbiol·Anna Fontcuberta i Morral
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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.

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Bernt Ketterer, Jordi Arbiol, Anna Fontcuberta i Morral. 2011-05-12. Phonon confinement and plasmon-phonon interaction in nanowire based quantum wells. https://doi.org/10.1103/physrevb.83.245327

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