Correlation between plasmon absorption and terahertz photoconductance in a grid-gated double-quantum well FET

Author

Popov, V.V. ; Teperik, T.V. ; Zayko, Yu.N. ; Allen, S.J. ; Horing, N. J M

Author_Institution

Inst. of Radio Eng. & Electron., Acad. of Sci., Saratov, Russia

fYear

2004

fDate

16-19 Aug. 2004

Firstpage

373

Lastpage

375

Abstract

We refine the determination of the equilibrium density distribution in a grid-gated double-quantum-well FET, taking account of screening in the system using the Poisson equation. This calculation provides requisite input information needed for the analysis of plasmon-mediated photoconductivity resonances observed in the recent experiments of Peralta and Allen. We show that the heights of the terahertz photoconductance peaks correlate with resonant terahertz plasmon absorbance.

Keywords

Poisson equation; field effect transistors; photoconductivity; plasmons; quantum well devices; semiconductor device models; submillimetre wave spectra; Poisson equation; equilibrium density distribution; grid-gated double-quantum well FET; plasmon absorption; plasmon-mediated photoconductivity resonance; screening effect; terahertz photoconductance; Double-gate FETs; Electromagnetic wave absorption; Electrons; Gratings; Photoconductivity; Plasmons; Poisson equations; Resonance; Submillimeter wave technology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology, 2004. 4th IEEE Conference on

Print_ISBN

0-7803-8536-5

Type

conf

DOI

10.1109/NANO.2004.1392355

Filename

1392355