93 citations · 191 across the 6 of their papers we have counts for
6 papers
Influence of plasmon resonances and symmetry effects on second harmonic generation in WS2-plasmonic hybrid metasurfaces
Florian Spreyer, Claudia Ruppert, Philip Georgi +1
The nonlinear process of second harmonic generation (SHG) in monolayer (1L) transition metal dichalcogenides (TMD), like , strongly depends on the polarization state of the e…
Non-Degenerate Two-Photon Absorption in ZnSe: Experiment and Theory
L. Krauss-Kodytek, W. -R. Hannes, T. Meier +2
We experimentally and theoretically investigate the non-degenerate two-photon absorption coefficient in the prototypical semiconductor ZnSe. In particular, we provide…
Gate-Control of Anisotropic Spin Transport and Spin Helix Dynamics in a Modulation-Doped GaAs Quantum Well
S. Anghel, F. Passmann, A. Singh +10
Electron spin transport and dynamics are investigated in a single, high-mobility, modulation-doped, GaAs quantum well using ultrafast two-color Kerr-rotation micro-spectroscopy, su…
High fidelity optical preparation and coherent Larmor precession of a single hole in an InGaAs quantum dot molecule
K. Müller, A. Bechtold, C. Ruppert +8
We employ ultrafast pump-probe spectroscopy with photocurrent readout to directly probe the dynamics of a single hole spin in a single, electrically tunable self-assembled quantum…
Electrical control of inter-dot electron tunneling in a quantum dot molecule
K. Müller, A. Bechtold, C. Ruppert +8
We employ ultrafast pump-probe spectroscopy to directly monitor electron tunneling between discrete orbital states in a pair of spatially separated quantum dots. Immediately after…
All-optical Coherent Control of Electrical Currents in Single GaAs Nanowires
C. Ruppert, S. Thunich, G. Abstreiter +3
A phase-stable superposition of femtosecond pulses and their second harmonic induces ultrashort microampere current bursts in single unbiased GaAs nanowires. Current injection reli…