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Stimulated and Spontaneous Optical Generation of Electron Spin Coherence in Charged GaAs Quantum Dots
Open accessAbstract
We report on the coherent optical excitation of electron spin polarization in the ground state of charged GaAs quantum dots via an intermediate charged exciton (trion) state. Coherent optical fields are used for the creation and detection of the Raman spin coherence between the spin ground states of the charged quantum dot. The measured spin decoherence time, which is likely limited by the nature of the spin ensemble, approaches 10 ns at zero field. We also show that the Raman spin coherence in the quantum beats is caused not only by the usual stimulated Raman interaction but also by simultaneous spontaneous radiative decay of either excited trion state to a coherent combination of the two spin states.
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Cites
Observation of coherent optical information storage in an atomic medium using halted light pulses
Liu, C., Dutton, Z., Behroozi, C. H., & Hau, L. V. (2001) · Nature · doi:10.1038/35054017 · Cited by 2,217
Cited by
Spins in few-electron quantum dots
Hanson, R., Kouwenhoven, L. P., Petta, J. R., Tarucha, S., & Vandersypen, L. M. K. (2007) · Reviews of Modern Physics · doi:10.1103/revmodphys.79.1217 · Cited by 2,665
Driven coherent oscillations of a single electron spin in a quantum dot
Koppens, F. H. L., Buizert, C., Tielrooij, K. J., Vink, I. T., Nowack, K. C., Meunier, T., Kouwenhoven, L. P., & Vandersypen, L. M. K. (2006) · Nature · doi:10.1038/nature05065 · Cited by 1,359
Mode Locking of Electron Spin Coherences in Singly Charged Quantum Dots
Greilich, A., Yakovlev, D. R., Shabaev, A., Efros, A. L., Yugova, I. A., Oulton, R., Stavarache, V., Reuter, D., Wieck, A., & Bayer, M. (2006) · Science · doi:10.1126/science.1128215 · Cited by 444
Nuclear spin physics in quantum dots: An optical investigation
Urbaszek, B., Marie, X., Amand, T., Krebs, O., Voisin, P., Maletinsky, P., Högele, A., & Imamoglu, A. (2013) · Reviews of Modern Physics · doi:10.1103/revmodphys.85.79 · Cited by 375
Spin-resolved quantum-dot resonance fluorescence
Nick Vamivakas, A., Zhao, Y., Lu, C.-Y., & Atatüre, M. (2009) · Nature Physics · doi:10.1038/nphys1182 · Cited by 292
Metadata
- Authors
- Dutt, M. V. G., Cheng, J., Li, B., Xu, X., Li, X., Berman, P. R., Steel, D. G., Bracker, A. S., Gammon, D., Economou, S. E., Liu, R.-B., & Sham, L. J.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2005-06-09
- Volume
- 94
- Issue
- 22
- Pages
- 227403-227403
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2122741334
- Cited by
- 276
- References
- 1
- FWCI
- 21.93
- Type
- journal article
- Language
- en
- Open access
- green
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- Dutt, M. V. G., Cheng, J., Li, B., Xu, X., Li, X., Berman, P. R., Steel, D. G., Bracker, A. S., Gammon, D., Economou, S. E., Liu, R.-B., & Sham, L. J. (2005). Stimulated and Spontaneous Optical Generation of Electron Spin Coherence in Charged GaAs Quantum Dots. Physical Review Letters. https://doi.org/10.1103/physrevlett.94.227403
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