We report an experimental method for probing the spin coherence dynamics of excitons by non-degenerate three beam four-wave mixing. The superposition of opposite spins states (exciton-polariton spin coherence) is probed through the biexciton-exciton transition.
© 2006 Optical Society of America
(300.0300) Spectroscopy : Spectroscopy
(300.6470) Spectroscopy : Spectroscopy, semiconductors
(320.0320) Ultrafast optics : Ultrafast optics
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
P. Gilliot, S. Cronenberger, H. Rahimpour Soleimani, M. Gallart, and B. Hönerlage, "Direct Measurement of Exciton-Polariton Spin Coherence by Non-Degenerate Four-Wave Mixing," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper JTuD105.
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