Spectrum of plasma oscillations of periodically inhomogeneous two-dimensional electron system near perforation threshold

One studied theoretically transformation of spectrum of plasma oscillations with zero reduced wave vector within space-modulated two-dimensional electron system ay system transition to insulated quasi-single-dimensional electron channels. One discusses the applied model to calculate equilibrium periodical distribution of electron density in 2D-system depending on voltage across periodical gating electrode. Paper contains calculation results compared with experimental data. On the basis of derived results one explains experiments to observe transformation of plasma resonance at transition through threshold of breaking of uniformity of two-dimensional electron system