62 articles – 638 Notices  [english version]
HAL : hal-00546391, version 1

Fiche détaillée  Récupérer au format
16th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures (EDISON 16), France (2009)
Plasma waves Terahertz detection by field effect transistor in Quantinzing magnetic fields
S. Boubanga-Tombet1, F. Teppe1, W. Knap1, K. Karpierz2, J. Lusakowski2, M. Grynberg2, M. I. Dyakonov3, J. Lyonnet, J. M. Peiris

Detection of THz radiation by a Field Effect Transistor InGaAs/InAlAs transistor was investigated at 4.2 K as a function of the magnetic field and gate voltage. We observed oscillations of the photovoltaic signal analogous to Shubnikov-de Haas oscillations, as well as their strong enhancement at the cyclotron resonance conditions. The results are successfully quantitatively described within the frame of a recent theory, taking into account a new source of nonlinearity related to Shubnikov-de Haas effect. We show that the detection is due to gated plasmon.
1 :  GES - Groupe d'étude des semiconducteurs
2 :  Institute of Experimental Physics, Warsaw University
3 :  LPTA - Laboratoire de Physique Théorique et Astroparticules
Physique/Physique/Physique Générale