Numerical modeling of plasma oscillations in 2D electron gas for THz HEMT devices

There has been growing interest in all-electronic sources in the terahertz frequencies. A compact THz source is obtainable, if plasma-oscillations in the 2DEG of a high electron mobility transistor (HEMT) are utilized. With this goal in mind, we develop a numerical tool which models such oscillations. We use hydrodynamic equations to model drifting plasma in the 2DEG, whereas the surrounding environment is modeled using the Maxwell's equations. The developed model is then validated by using previously published analytical results.