Abstract
The effect of longitudinal optical (LO) phonon–coherent plasmon coupling on the transient self-consistent field and then on frequency spectra of collective oscillations in GaAs p–i–n diodes without a biased field is investigated by the self-consistent ensemble Monte Carlo method. The frequency spectra of collective oscillations in the diodes show that there are two new strong peaks in the terahertz range when the coupling is taken into account. These peaks replace the coupled phonon–plasmon peaks in the bulk semiconductor.
Published Version
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