title: Plasma wave instability and amplification of terahertz radiation in field-effect-transistor arrays.
abstract: We show that the strong amplification of terahertz radiation takes place in an array of field-effect transistors at small DC drain currents due to hydrodynamic plasmon instability of the collective plasmon mode. Planar designs compatible with standard integrated circuit fabrication processes and strong coupling of terahertz radiation to plasmon modes in FET arrays make such arrays very attractive for potential applications in solid-state terahertz amplifiers and emitters.
authors.affiliation: Institute of Radio Engineering and Electronics (Saratov Branch), Russian Academy of Sciences, 410019 Saratov, Russia.
authors.forename: V V
authors.initials: VV
authors.lastname: Popov
authors.forename: G M
authors.initials: GM
authors.lastname: Tsymbalov
authors.forename: M S
authors.initials: MS
authors.lastname: Shur