Calculations are presented for the collective plasmon modes of a superlattice consisting of two-dimensional electron gas layers separated by media of alternating thickness and/or dielectric constant. The theory is developed for bulk plasmon modes in an infinite superlattice, and for bulk and surface modes in a semi-infinite superlattice. Applications are made to layered electron gases in semiconductor heterojunctions (such as GaAs/Al x Ga 1-x As), and in particular to light scattering from the plasmons.
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Constantinou et al. (1986) studied this question.
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