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Proceedings Paper

Characterization of current filamentation in GaAs photoconductive switches
Author(s): Jeff C. Adams; R. Aaron Falk; C. David Capps; Gail L. Bohnhoff-Hlavacek
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Paper Abstract

The spectral and temporal nature of the recombinant radiation from a GaAs photoconductive switch is described. A simultaneous measurement of the electrical avalanche pulse and associated temporal luminescence peak is utilized to extract a propagation velocity for the filamentary tip of approximately 5 X 108 cm/s. The measured spectral content of the filaments in a bulk structure is presented for various bias voltages and compared to a theoretical model for band-to-band recombination considering temperature, carrier density, and self-absorption effects.

Paper Details

Date Published: 9 June 1993
PDF: 11 pages
Proc. SPIE 1873, Optically Activated Switching III, (9 June 1993); doi: 10.1117/12.146546
Show Author Affiliations
Jeff C. Adams, Boeing Defense and Space Group (United States)
R. Aaron Falk, Boeing Defense and Space Group (United States)
C. David Capps, Boeing Defense and Space Group (United States)
Gail L. Bohnhoff-Hlavacek, Boeing Defense and Space Group (United States)

Published in SPIE Proceedings Vol. 1873:
Optically Activated Switching III
R. Aaron Falk, Editor(s)

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