Title :
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
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;
Conference_Titel :
Nanotechnology, 2004. 4th IEEE Conference on
Print_ISBN :
0-7803-8536-5
DOI :
10.1109/NANO.2004.1392355
