Anisotropy effects on the electronic transport in photoexcited GaAs

R. P. Joshi, S. El-Ghazaly, R. O. Grondin

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We investigate the effects of both carrier and phonon k-space anisotropy on the transport in bulk GaAs photoconductors. Our results show that photogeneration by laser pulses polarized perpendicular to the electric field can delay the initial velocity rise. Furthermore, anisotropic phonon amplification can degrade the turn-off characteristics. Finally, unlike n-doped semiconductors, we find that the steady-state velocity-field values in photoconductors are reduced because of the nonequilibrium phonon modes.

Original languageEnglish
Pages (from-to)7388-7392
Number of pages5
JournalJournal of Applied Physics
Issue number12
StatePublished - 1990


Dive into the research topics of 'Anisotropy effects on the electronic transport in photoexcited GaAs'. Together they form a unique fingerprint.

Cite this