Terahertz Generation Due to Streaming Plasma Instability in n+-n--n-n+ InN Submicron Structure

Abstract

Streaming plasma instability at near ballistic electron motion in InN n+–n––n–n+ structures is theoretically investigated by the Monte Carlo particle technique at low lattice temperatures (T < 140 K), when dominating scattering mechanism is the optical phonon emission. It is shown that the electron transport through the structure of certain geometry can be essentially nonstationary in some bias range. The simulation of the steady state transport and microwave power generation in InN n+–n––n–n+ structures, connected with an external parallel resonant circuit, demonstrates that up to 50 μW of the microwave power can be delivered by the structure in the 1.1 to 1.2 THz frequency range at liquid nitrogen temperature.