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Electromagnetically induced transparency with an ensemble of donor-bound electron spins in a semiconductor

Sladkov, M., Chaubal, A. U., Bakker, M. P., Onur, A. R., Reuter, D., Wieck, A. D. & van der Wal, C. H. 24-Sep-2010 In : Physical Review. B: Condensed Matter and Materials Physics. 82, 12, p. 121308-1-121308-4 4 p., 121308

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  • Maksym Sladkov
  • A. U. Chaubal
  • M. P. Bakker
  • A. R. Onur
  • D. Reuter
  • A. D. Wieck
  • C. H. van der Wal

We present measurements of electromagnetically induced transparency with an ensemble of donor-bound electrons in low-doped n-GaAs. We used optical transitions from the Zeeman-split electron-spin states to a bound trion state in samples with optical densities of 0.3 and 1.0. The electron-spin dephasing time T*(2) approximate to 2 ns was limited by hyperfine coupling to fluctuating nuclear spins. We also observe signatures of dynamical nuclear polarization but find these effects to be much weaker than in experiments that use electron-spin resonance and related experiments with quantum dots.

Original languageEnglish
Article number121308
Pages (from-to)121308-1-121308-4
Number of pages4
JournalPhysical Review. B: Condensed Matter and Materials Physics
Volume82
Issue number12
StatePublished - 24-Sep-2010

    Keywords

  • OPTICAL PULSES, GAAS, SPECTROSCOPY, LOCKING

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