Intervalley Scattering as a Function of Temperature in Gaas Using Time-Resolved Visible Pump - IR Probe Absorption Spectroscopy

  • Michael A. Cavicchia
  • Wubao Wang
  • R. R. Alfano

Abstract

Understanding the detailed physics underlying intervalley scattering in multi-valley semiconductors is crucial for the efficient design of high-speed electronic and microwave devices and has been the subject of intense study over the past decade. Several experimental and theoretical studies based on ultrafast spectroscopy have been performed to obtain the scattering times for hot electrons going between the central, Γ6, valley and the satellite, X6 and L6, conduction band valleys in GaAs under various conditions.1,2 The techniques previously used involved investigations of the hot electron distribution only in the central, i.e., k=0, conduction band valley.

Keywords

Microwave Recombination GaAs 

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Copyright information

© Plenum Press, New York 1996

Authors and Affiliations

  • Michael A. Cavicchia
    • 1
  • Wubao Wang
    • 1
  • R. R. Alfano
    • 1
  1. 1.Institute for Ultrafast Spectroscopy and Lasers, New York State Center for Advanced Technology for Ultrafast Photonic Materials and Applications, Physics DepartmentThe City College and The Graduate School of the City University of New YorkNew YorkUSA

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