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Applied Physics Letters 95, 7 (2009) 072106
Terahertz Radiation Detection by Field Effect Transistor in Magnetic Field
S. Boubanga-Tombet, M. Sakowicz, D. Coquillat, F. Teppe, W. Knap, Michel Dyakonov1, K. Karpierz, J. Lusakowski, M. Grynberg

We report on terahertz radiation detection with InGaAs/InAlAs Field EffectTransistors in quantizing magnetic field. The photovoltaic detection signal isinvestigated at 4.2 K as a function of the gate voltage and magnetic field.Oscillations analogous to the Shubnikov-de Haas oscillations, as well as theirstrong enhancement at the cyclotron resonance, are observed. The results arequantitatively described by a recent theory, showing that the detection is dueto rectification of the terahertz radiation by plasma waves relatednonlinearities in the gated part of the channel.
1 :  LPTA - Laboratoire de Physique Théorique et Astroparticules
Physique/Matière Condensée/Systèmes mésoscopiques et effet Hall quantique
aluminium compounds – cyclotron resonance – field effect transistors – gallium arsenide – III-V semiconductors – indium compounds – photodetectors – plasma waves – Shubnikov-de Haas effect – terahertz wave detectors
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