Spin-dependent polariton condensates (B07)

• Subject Area: Experimental Condensed Matter Physics
• Term: from 2015 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 249492093

Target of this project will be the optical creation of tailored potentials with superior properties for polariton condensates. To this end, we will employ dark excitons because their lifetime exceeds the lifetime of polaritons by three orders of magnitude and they do not alter the polariton population dynamics directly. After a detailed characterization of dark exciton properties both for resonant and non-resonant excitation, we will apply them to polaritons in cavity structures containing diluted magnetic semiconductor quantum wells, which offer a tunable polariton spin splitting. The combination of both will allow us to control the spin state of polaritons optically.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 160: Coherent manipulation of interacting spin excitations in tailored semiconductors
• Applicant Institution: Technische Universität Dortmund
• Co-Applicant Institution: Saint Petersburg University, until 2/2022
• Project Heads: Professor Dr. Marc Alexander Aßmann; Professor Dr. Alexey Kavokin, until 2/2022