4 citations · 9 across the 9 of their papers we have counts for
9 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. Połczyńska, Paweł Wyborski, Michał Gawełczyk +4
Significant progress in quantum light sources for quantum communication applications requires reproducible and symmetric quantum emitters acting as single-photon sources capable of…
Exciton coherence propagation measured with non-local four-wave mixing micro-spectroscopy
Mateusz Raczyński, Amadeusz Dydniański, Karolina Ewa Połczyńska +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 Dydniański, Mateusz Raczyński, Aleksandra Łopion +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…
Carrier localization in defected areas of (Cd, Mn)Te quantum well investigated via Optically Detected Magnetic Resonance employed in the microscale
Amadeusz Dydniański, Aleksandra Łopion, Mateusz Raczyński +4
In this work, we study the impact of carrier localization on three quantities sensitive to carrier gas density at the micrometer scale: charged exciton (X+) oscillator strength, lo…
Single vanadium ion magnetic dopant in an individual CdTe/ZnTe quantum dot
Karolina Ewa Połczyńska, 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…
Impact of the Hole Gas on Optically Detected Magnetic Resonance in (Cd,Mn)Te Based Quantum Well
Aleksandra Łopion, Aleksander Bogucki, Mateusz Raczyński +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…
Strain-induced speed-up of Mn spin-lattice relaxation in (Cd,Mn)Te/(Cd,Mg)Te quantum wells: a time-resolved ODMR study
Aleksander Bogucki, Aleksandra Łopion, Karolina Ewa Połczyńska +4
This study examines the spin-lattice relaxation rate of Mn ions in strained diluted magnetic semiconductor (Cd,Mn)Te/(Cd,Mg)Te quantum wells using the optically detected mag…
Magnetic ion relaxation time distribution within a quantum well
Aleksandra Łopion, Aleksander Bogucki, Wiktor Kraśnicki +5
Time-resolved optically detected magnetic resonance (ODMR) is a valuable technique to study the local deformation of the crystal lattice around magnetic ion as well as the ion spin…