Ultrafast magnetophotoconductivity of semi-insulating gallium arsenide

R. H. Moyer, P. Agmon, T. L. Koch, A. Yariv

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The speed of opto-electronic switches is increased or decreased by the application of a magnetic field. This is achieved by inducing a carrier drift toward or away from the semiconductor surface, resulting in the enhancement or suppression of surface recombination. We establish that surface recombination plays a major role in determining the speed of the opto-electronic switch.

Original languageEnglish (US)
Pages (from-to)266-268
Number of pages3
JournalApplied Physics Letters
Issue number3
StatePublished - 1981

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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