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Träfflista för sökning "WFRF:(Codron J. L.) "

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1.
  • Ducournau, G., et al. (author)
  • 200 GHz communication system using unipolar InAs THz rectifiers
  • 2013
  • In: International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. - 2162-2027 .- 2162-2035. - 9781467347174
  • Conference paper (peer-reviewed)abstract
    • We report on the first use of a THz detector based on InAs rectifying nanochannels in a communication system. The transmitter is composed of an electronic multiplication chain, externally amplitude modulated at the input signal. The system has been driven at 200 GHz and up to 500 Mbps data signals have been transmitted in an indoor configuration. In contrast to most nanodevices, the InAs detector has a low impedance (580 ω) and is therefore easily loaded by 50 ω electronics. The data rate limitation is mainly coming from parasitics coupled in the board. © 2013 IEEE.
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2.
  • Desplanque, L., et al. (author)
  • AlSb nucleation induced anisotropic electron mobility in AlSb/InAs heterostructures on GaAs
  • 2012
  • In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 100:26
  • Journal article (peer-reviewed)abstract
    • The influence of the growth conditions at the AlSb/GaAs interface on the electron mobility in AlSb/InAs heterostructures is investigated. We show that an excessive antimony flux during the initial stage of the AlSb buffer growth leads to a strong anisotropy of electron mobility in InAs between [110] and [1-10] crystallographic orientations. This anisotropy is attributed to the formation of trenches oriented along the [1-10] direction in the InAs channel. Transmission electron microscopy reveals that these trenches are directly related to twinning defects originating from the AlSb/GaAs interface.
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