All-optical generation and detection of subpicosecond ac spin-current pulses in GaAs
Issue Date
2008-07Author
Ruzicka, Brian Andrew
Higley, Karl
Werake, Lalani Kumari
Zhao, Hui
Publisher
American Physical Society
Type
Other
Version
http://arxiv.org/abs/0806.3901v1
Metadata
Show full item recordAbstract
Subpicosecond ac spin-current pulses are generated optically in GaAs bulk and quantum wells at room temperature and at 90 K through quantum interference between one-photon and two-photon absorptions driven by two phase-locked ultrafast laser pulses that are both circularly polarized. The dynamics of the current pulses are detected optically by monitoring, in real time and in real space, the nanoscale motion of electrons with high-resolution pump probe techniques.
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Citation
B.A. Ruzicka, K. Higley, L.K. Werake, and Hui Zhao, All-optical generation and detection of subpicosecond ac spin-current pulses in GaAs, Physical Review B 78, 045314 (2008). http://link.aps.org/doi/10.1103/PhysRevB.78.045314
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