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Broad band THz sensing by 2DEG bow-tie-type diodes

Authors
  • Valusis, G.
  • Seliuta, D.
  • Tamosiunas, V.
  • Sirmulis, E.
  • Balakauskas, S.
  • Gradauskas, J.
  • Suziedelis, A.
  • Asmontas, S.
  • Anbinderis, T.
  • Narkunas, A.
  • Papsujeva, I.
  • Lisauskas, A.
  • Roskos, H.G.
  • Köhler, K.
Publication Date
Jan 01, 2005
Source
Fraunhofer-ePrints
Keywords
Language
English
License
Unknown
External links

Abstract

We suggest a novel approach to detect broad band, 0.078-2.52 THz, electromagnetic radiation at room temperature using an asymmetrically-shaped bow-tie diode based on a modulation-doped GaAs/AlGaAs structure. We show that the voltage sensitivity in the range from 0.078 THz up to 0.8 THz has a plateau and its value is within 0.3-0.5 V/W. We consider the bow-tie diode design to increase the sensitivity of the device.

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