no code implementations • 25 Feb 2021 • Thilo Hahn, Jacek Kasprzak, Paweł Machnikowski, Tilmann Kuhn, Daniel Wigger
To describe the coherence and polarization dynamics of excitons after ultrafast excitation in these systems, we employ the Bloch equation model of a two-level system extended by a local field describing the exciton-exciton interaction.
Mesoscale and Nanoscale Physics
no code implementations • 20 Nov 2020 • Philipp Henzler, Christian Traum, Matthias Holtkemper, David Nabben, Marcel Erbe, Doris E. Reiter, Tilmann Kuhn, Suddhassatta Mahapatra, Karl Brunner, Denis V. Seletskiy, Alfred Leitenstorfer
Ultrafast transmission changes around the fundamental trion resonance are studied after exciting a p-shell exciton in a negatively charged II-VI quantum dot.
Mesoscale and Nanoscale Physics Quantum Physics