Regensburg 2007 – wissenschaftliches Programm

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PV: Plenarvorträge

PV X

PV X: Plenarvortrag

Mittwoch, 28. März 2007, 08:30–09:15, H1

Quantum dot spin manipulation — •Atac Imamoglu — Institute of Quantum Electronics, Quantum Photonics Group, ETH Hönggerberg, HPT G10, CH-8093 Zürich

Spin dynamics in quantum dots are enriched by their solid-state environment. I will describe recent experiments demonstrating efficient all-optical pumping and measurement of a quantum dot spin. Single-spin pumping is achieved using spontaneous spin-flip Raman transition, enabled by the hyperfine-interaction induced mixing of the single electron spin states. Measurement of the time-averaged spin-state on the other hand, is realized by observing the Faraday rotation of an off-resonant laser field.