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.