5 papers
Determination of carrier density and dynamics via magneto-electroluminescence spectroscopy in resonant tunneling diodes
E. R. Cardozo de Oliveira, A. Naranjo, A. Pfenning +6
We study the magneto-transport and magneto-electroluminescence properties of purely n-doped GaAs/AlGaAs resonant tunneling diodes with an InGaAs q…
Exciton-polariton topological insulator
S. Klembt, T. H. Harder, O. A. Egorov +9
Topological insulators (TIs) are a striking example of materials in which topological invariants are manifested in robustness against perturbations. Their most prominent feature is…
Electroluminescence on-off ratio control of n-i-n GaAs/AlGaAs-based resonant tunneling structures
E. R. Cardozo de Oliveira, A. Pfenning, E. D. Guarin +7
We explore the nature of the electroluminescence (EL) emission of purely n-doped GaAs/AlGaAs resonant tunneling diodes (RTDs) and the EL evolution with voltage. A singular feature…
Distinguishing photon and polariton lasing from GaAs microcavities by spectral and temporal analysis of the two-threshold behavior
Jean-Sebastian Tempel, Franziska Veit, Marc Aßmann +8
We compare polariton lasing with photon lasing of a planar GaAs/GaAlAs microcavity with zero detuning between the bare cavity mode and the bare exciton mode. For the emission from…
Universal and reconfigurable logic gates in a noise-triggered artificial neuron node
L. Worschech, F. Hartmann, A. Forchel +3
Submicron-sized mesas of resonant tunneling diodes (RTDs) with split drain contacts have been realized and the current-voltage characteristics have been studied in the bistable reg…