7 papers
Coherent dynamics of individual excitons in a quantum dot embedded in a nanopost
Maxime Gaignard, Karolina Ewa Polczynska, Niels Gregersen +5
We measured coherent ultrafast dynamics of exciton complexes in a single strongly-confined InAs quantum dot embedded in a GaAs nanopost. Such a photonic structure combines a wave g…
Local droplet etching-assisted quantum dot epitaxy for telecom C-band quantum light emitters
Karolina E. PoÅczyÅska, PaweÅ Wyborski, MichaÅ GaweÅczyk +4
Significant progress in quantum light sources for quantum communication applications requires reproducible and symmetric quantum emitters acting as single-photon sources capable of…
Single vanadium ion magnetic dopant in an individual CdTe/ZnTe quantum dot
Karolina Ewa PoÅczyÅska, Tomasz Kazimierczuk, Piotr Kossacki +1
We present the basic properties of a new physical system: an individual V2+ ion embedded into an individual quantum dot. The system is realized utilizing molecular beam epitaxy and…
Exciton coherence propagation measured with non-local four-wave mixing micro-spectroscopy
Mateusz RaczyÅski, Amadeusz DydniaÅski, Karolina Ewa PoÅczyÅska +8
Coherence transfer is a multi-disciplinary topic of interest, including chemistry, biology and physics. In quantum technologies, achieving non-local coherent coupling between solid…
Hole to Electron Crossover in a (Cd,Mn)Te Quantum Well through Surface Metallization
Amadeusz DydniaÅski, Mateusz RaczyÅski, Aleksandra Åopion +5
In this work we look into how the contact material influences the local charge properties of a p-type CdTe-based quantum well. We study five metals deposited as 10 nm layers on the…
Impact of the Hole Gas on Optically Detected Magnetic Resonance in (Cd,Mn)Te Based Quantum Well
Aleksandra Åopion, Aleksander Bogucki, Mateusz RaczyÅski +6
Optically detected magnetic resonance (ODMR) is a useful technique for studying interactions between local spins (magnetic ions) and carrier gas. We present the ODMR study of singl…