AG Optoelektronik und Quantenbauelemente

2 Items

Recent Submissions
Coherent spectroscopy of InGaAs quantum dots

Strauß, Stefan Maximilian (2018)

Excitons in quantum dots represent a remarkably good two-level system with a large optical dipole transition moment. Although most research currently focuses on enhancing their already outstanding properties as single photon emitters they become also increasingly interesting for experimental fundamental research due to their large dipole transition moment. This thesis presents studies which exp...

Accessing the dark exciton spin in deterministic quantum-dot microlenses

Heindel, Tobias ; Thoma, Alexander ; Schwartz, Ido ; Schmidgall, Emma R. ; Gantz, Liron ; Cogan, Dan ; Strauß, Max ; Schnauber, Peter ; Gschrey, Manuel ; Schulze, Jan-Hindrik ; Strittmatter, Andre ; Rodt, Sven ; Gershoni, David ; Reitzenstein, Stephan (2017)

The dark exciton state in semiconductor quantum dots (QDs) constitutes a long-lived solid-state qubit which has the potential to play an important role in implementations of solid-state-based quantum information architectures. In this work, we exploit deterministically fabricated QD microlenses which promise enhanced photon extraction, to optically prepare and read out the dark exciton spin and...