Enhanced electromagnetic coupling between terahertz radiation and plasmons in a grating-gate transistor structure on membrane substrate

Vyacheslav V Popov; Denis V Fateev; Olga V Polischuk; Michael S Shur

doi:10.1364/OE.18.016771

Enhanced electromagnetic coupling between terahertz radiation and plasmons in a grating-gate transistor structure on membrane substrate

Opt Express. 2010 Aug 2;18(16):16771-6. doi: 10.1364/OE.18.016771.

Authors

Vyacheslav V Popov¹, Denis V Fateev, Olga V Polischuk, Michael S Shur

Affiliation

¹ Department of Electrical, Computer, and System Engineering and Center for Integrated Electronics, CII 9015, Rensselaer Polytechnic Institute, Troy, 12180 New York, USA. [email protected]

PMID: 20721068
DOI: 10.1364/OE.18.016771

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.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electromagnetic Phenomena
Equipment Design
Light*
Models, Theoretical*
Refractometry / instrumentation*
Scattering, Radiation*
Surface Plasmon Resonance / instrumentation*
Terahertz Radiation*