title: Enhanced electromagnetic coupling between terahertz radiation and plasmons in a grating-gate transistor structure on membrane substrate.
abstract: We have shown that the electromagnetic coupling of a grating-gate plasmonic detector to terahertz radiation can be considerably enhanced by placing the detector onto a membrane substrate and using a narrow-slit grating-gate. The responsivity of the membrane detector can be enhanced by a factor of 50 as compared to a conventional grating-gate plasmonic detector on a bulk substrate due to enhanced electromagnetic coupling between the plasmons and terahertz radiation.
authors: Department of Electrical, Computer, and System Engineering and Center for Integrated Electronics, CII 9015, Rensselaer Polytechnic Institute, Troy, 12180 New York, USA. popov@soire.renet.ru
authors: Vyacheslav V
authors: VV
authors: Popov
authors: Denis V
authors: DV
authors: Fateev
authors: Olga V
authors: OV
authors: Polischuk
authors: Michael S
authors: MS
authors: Shur
mesh_terms: D055590:Electromagnetic Phenomena; D004867:Equipment Design; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D055053:Terahertz Radiation