Beschreibung:
<jats:title>Abstract</jats:title><jats:p>Parametric interaction is considered of plasma oscillations in two‐dimensional electron gases (2DEG) placed in two parallel planes in the presence of an intense electromagnetic field (EMF). The spectrum of coupled plasmons is calculated for the case when the EMF frequency is high compared with the frequencies of 2D plasmons in isolated 2DEG's. The frequency of the coupled plasmons is found to be an oscillating function of the EMF amplitude. The case of parametric resonance is considered, and the parametric excitation gain is calculated.</jats:p>