17 citations · 38 across the 5 of their papers we have counts for
5 papers
Spin helices in GaAs quantum wells: Interplay of electron density, spin diffusion, and spin lifetime
S. Anghel, A. V. Poshakinskiy, K. Schiller +4
To establish a correlation between the spin diffusion, the spin lifetime, and the electron density, we study, employing time-resolved magneto-optical Kerr effect microscopy, the sp…
A nonlinear metasurface combining telecom-range intersubband transitions in GaN/AlN quantum wells with resonant plasmonic antenna arrays
Jan Mundry, Florian Spreyer, Valentin Jmerik +3
We realize and investigate a nonlinear metasurface taking advantage of intersubband transitions in ultranarrow GaN/AlN multi-quantum well heterostructures. Owing to huge band offse…
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…
Enhanced spin lifetimes in a two dimensional electron gas in a gate-controlled GaAs quantum well
Sergiu Anghel, Akshay Singh, Felix Passmann +5
Exciton, trion and electron spin dynamics in a 20 nm wide modulation-doped GaAs single quantum well are investigated using resonant ultrafast two-color Kerr rotation spectroscopy.…
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…