Direct observation of all-optical injection of spin-polarized currents
| Autor: | W. W. Rühle, Jens Hübner, Detlef Hommel, John E. Sipe, M. Klude, R. D. R. Bhat, H. M. van Driel |
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| Rok vydání: | 2003 |
| Předmět: |
Photoluminescence
Condensed matter physics Chemistry Physics::Optics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Laser Polarization (waves) Two-photon absorption Electronic Optical and Magnetic Materials law.invention Condensed Matter::Materials Science law Ballistic conduction Femtosecond Charge carrier Atomic physics Spin (physics) |
| Zdroj: | physica status solidi (b). 238:548-551 |
| ISSN: | 1521-3951 0370-1972 |
| DOI: | 10.1002/pssb.200303187 |
| Popis: | Ballistic currents of spin-polarized carriers are generated by quantum interference of one and two photon absorption. Polarization and relative phase of the exciting femtosecond laser fields control the magnitude and direction of the currents as well as the electron spin orientation. These spin-polarized currents are experimentally detected by a phase-dependent spatial shift of the circularly analyzed photoluminescence in cubic ZnSe. |
| Databáze: | OpenAIRE |
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