Plasmonic excitations, consisting of collective oscillations of the electron gas in a conductive
film or nanostructure coupled to electromagnetic fields, play a prominent role in photonics …

This paper reviews recent advances in the research and development of graphene-based
plasmonic metamaterials for terahertz (THz) laser transistors. The authors' theoretical …

Terahertz waves, which lie in the frequency range of 0.1-10 THz, have long been
investigated in a few limited fields, such as astronomy, because of a lack of devices for their …

Graphene is a recently discovered carbon-based material with unique physical properties.
This is a monolayer of graphite, and the two-dimensional electrons and holes in it are …

We measure the real and imaginary conductivity σ (k= 0, ω) of a high-mobility two-
dimensional electron gas (2DEG) system at frequencies below and above the momentum …

Twenty years ago active experimental studies of plasma oscillations in two-dimensional
electron systems (2DES's) in Si metal-oxide-semiconductor field-effect transistors and G a A …

We report on room temperature terahertz generation by a submicron size AlGaN/GaN-based
high electron mobility transistors. The emission peak is found to be tunable by the gate …

We study terahertz (THz) radiation transmission through grating-gate graphene-based
nanostructures. We report on room-temperature THz radiation amplification stimulated by …

This paper reviews recent advances in our original 2D-plasmon-resonant terahertz emitters.
The structure is based on a high-electron-mobility transistor and featured with doubly …

A novel terahertz plasma-wave photomixer that can improve the conversion gain and
terahertz radiation power is proposed and evaluated. The photomixer is based on a high …