Coherent coupling and optical manipulation of individual excitonic states
Patton B., Woggon U., Langbein W.
We present heterodyne detected transient four-wave mixing of individual exciton states. Coherent coupling between states is observed and single excitons are optically manipu- lated, driving their polarisation through a desired angle in the Bloch sphere. © 2004 Optical Society of America.