Amplification and generation of terahertz plasmons in gated two-dimensional channels: Modal analysis

O. Sydoruk
2014 Journal of Applied Physics  
A theoretical analysis is presented of plasmons in gated two-dimensional electron channels supporting dc currents. In contrast to previous treatments, the model takes into account complete mode spectra and transverse field distributions. Conditions for plasmon amplification are determined, and asymmetric plasmonic oscillators are analysed. The results are compared with the traditional treatment of the Dyakonov-Shur instability. The limitations of the traditional treatment are thus revealed. The
more » ... thus revealed. The present electrodynamically rigorous model can be used to design and analyse terahertz plasmonic oscillators. V C 2014 AIP Publishing LLC.
doi:10.1063/1.4879317 fatcat:euxyhh57ovgdlay45fzc63k7xa