The possibility to incorporate manganese ions isoelectronically into II-VI semiconductors allows the control of electronic and magnetic properties of semiconductor quantum dots. As a result, pronounced magneto-optical effects, like giant Zeeman splitting, pronounced Faraday rotation or the formation of magnetic polarons can be observed. In this regard we focus on:

• Light controlled spin polarization
• Superradiance of quantum dots
• Tuning of g factors, symmetry and exciton confinement