Dynamic Response of Millimeter Waves in a Semiconductor Waveguide to Picosecond Illumination

  • A. M. Yurek
  • M.-G. Li
  • C. D. Striffler
  • C. H. Lee
Conference paper
Part of the Springer Series in Chemical Physics book series (CHEMICAL, volume 38)

Abstract

To construct an electronically controllable phased array system in the millimeter-wave region, one needs switches and phase shifters which are operable at speeds of about one nanosecond with a time precision of several picoseconds [1]. Such a speed requirement is beyond the capability of current techniques. A class of devices in which the propagation parameters of millimeter-wave signals are controlled by optically induced electron-hole plasmas in semiconductor waveguides appears to be one method of achieving such speed and precision [2–5]. A complete understanding of the physics of the interaction of millimeter-waves with an electron-hole plasma is essential for the design of such devices. An outstanding problem has been the measurement of the transient response of the millimeter-wave system after illumination by lowrepetition-rate, variable energy pulses. In this paper, we report a dynamic bridge technique which has the capability to measure simultaneously the relative phase and loss response of the millimeter-wave system to illumination by frequency doubled single pulses from a mode-locked Nd:YAG laser with a potential time resolution in the picosecond range.

Keywords

Attenuation Recombination Auger 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • A. M. Yurek
    • 1
  • M.-G. Li
    • 1
  • C. D. Striffler
    • 1
  • C. H. Lee
    • 1
  1. 1.Electrical Engineering DepartmentUniversity of MarylandCollege ParkUSA

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