Mechanism of Radiation Coupling to Plasma Wave Field Effect Transistor Sub-THz Detectors

• Authors: M. Sakowicz , J. Łusakowski , K. Karpierz , M. Grynberg , W. Gwarek , W. Knap , S. Boubanga
• Languages of publication: EN

Abstracts

EN

Detection of 100 GHz and 285 GHz electromagnetic radiation by GaAs/AlGaAs field effect transistors with the gate length of 150 nm was investigated at 300 K as a function of the angleαbetween the direction of linear polarization of the radiation and the symmetry axis of the field effect transistors. The angular dependence of the detected signal was found to be Acos²(α-α₀)+C. A response of the transistor chip (including bonding wires and the substrate) to the radiation was numerically simulated. Calculations confirmed experimentally observed dependences and allowed to investigate the role of bonding wires and contact pads in coupling of the radiation to the transistor channel.

Keywords

EN

84.40.Ba; 52.40.Fd; 85.30.Tv; 07.57.Kp

Discipline

• 07.57.Kp: Bolometers; infrared, submillimeter wave, microwave, and radiowave receivers and detectors(see also 85.60.Gz Photodetectors in electronic and magnetic devices, and 95.55.Rg Photoconductors and bolometers in astronomy)
• 85.30.Tv: Field effect devices
• 52.40.Fd: Plasma interactions with antennas; plasma-filled waveguides
• 84.40.Ba: Antennas: theory, components and accessories(for plasma interactions with antennas, see 52.40.Fd in plasma physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 5
• Pages: 1337-1342

Dates

published

2008-11

received

2008-06-07

Contributors

author

M. Sakowicz

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

J. Łusakowski

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

K. Karpierz

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

M. Grynberg

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

W. Gwarek

• Institute of Radioelectronics, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warsaw, Poland

author

W. Knap

• GES-CNRS URM 5650, UniversitéMontpellier 2, Pl. Eugène Bataillon, 34950 Montpellier, France

author

S. Boubanga

• GES-CNRS URM 5650, UniversitéMontpellier 2, Pl. Eugène Bataillon, 34950 Montpellier, France

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Identifiers

DOI

10.12693/APhysPolA.114.1337