Room temperature generation of terahertz radiation from a grating-bicoupled plasmon-resonant emitter: Size effect

Autor: Mitsuhiro Hanabe, Taiichi Otsuji, Eiichi Sano, Takuma Ishibashi, Yahya Moubarak Meziani, Tomohiro Uno
Rok vydání: 2007
Předmět:
Zdroj: Applied Physics Letters. 90:061105
ISSN: 1077-3118
0003-6951
Popis: A doubly interdigitated grating gates structure was incorporated into a GaAs-based high-electron mobility transistor to configure a plasmon-resonant emitter. Two dimensional electrons are then periodically confined in 100nm regions. The devices exhibit a plasma-wave signature under 1.5μm cw laser illumination. Two devices with different geometries have been subjected to an impulsive laser at room temperature. The authors observed clear generation of terahertz radiation from both devices.
Databáze: OpenAIRE