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Oklahoma State University

THz Detection Electronics and Time Delay Controllers

The general setup used to detect the radiation from our THz receiver chip is shown in the diagram below:

  • We have a wide variety of low noise current amplifiers from both Ithaco (model 1211) and Stanford Research Systems (model SR570)
  • Lock-in Amplifiers from Stanford Research Systems (model SR530 and model SR830).
  • In addition we use DC power supplies to provide a bias voltage for our THz source chips.
  • We use computer controlled delay lines with interferometric (0.1 m) precision to provide the delay of the optical pulses used to gate the THz experiment. These are from the Newport/Klinger Company.