Accession Number : ADA518431


Title :   Viscous Hydrodynamic Model of Non-linear Plasma Oscillations in Two-Dimensional Gated Conduction Channels and Application to the Detection of Terahertz Signals


Descriptive Note : Final rept. Oct 2009-Apr 2010


Corporate Author : ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE


Personal Author(s) : Rudin, Sergey


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA518431


Report Date : APR 2010


Pagination or Media Count : 36


Abstract : The conduction channel of a heterostructure High Electron Mobility Transistor can act as a plasma wave resonator for charge density oscillations at frequencies significantly higher than the transistor cut-off frequency in a short channel device. In the Dyakonov-Shur detector a short channel HEMT is used for the resonant tunable detection of electromagnetic radiation in the low terahertz range. Here I evaluated the resonant nonlinear response and obtained the temperature dependence of the quality factor of the plasma resonance. I find that in high mobility gated semiconductor conduction channels the quality of the resonance is limited by the temperature dependent viscosity of the electron fluid.


Descriptors :   *NONLINEAR SYSTEMS , *PLASMA OSCILLATION , *ULTRAHIGH FREQUENCY , *GATES(CIRCUITS) , *HYDRODYNAMICS , *VISCOSITY , *HIGH ELECTRON MOBILITY TRANSISTORS , ELECTRONS , QUALITY , RESPONSE , ELECTROMAGNETIC RADIATION , RESONANCE , TUNING , FLUIDS , SHORT RANGE(DISTANCE) , RESONATORS , CHARGE DENSITY , OSCILLATION , CHANNELS , PLASMA WAVES , FIELD EFFECT TRANSISTORS , PLASMAS(PHYSICS) , TWO DIMENSIONAL , CONDUCTIVITY , MODELS , DETECTION , THERMAL PROPERTIES , TEMPERATURE


Subject Categories : ELECTRICAL AND ELECTRONIC EQUIPMENT
      MISCELLANEOUS DETECTION AND DETECTORS
      ELECTRICITY AND MAGNETISM
      PLASMA PHYSICS AND MAGNETOHYDRODYNAMICS


Distribution Statement : APPROVED FOR PUBLIC RELEASE