Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Niels Majer"'
Publikováno v:
physica status solidi c. 5:194-197
We investigate the influence of extended time delayed feedback upon the spatio-temporal current density patterns in a double barrier resonant tunnelling diode. The parameters of the device are chosen to reflect a situation where the only stable state
Publikováno v:
2011 Numerical Simulation of Optoelectronic Devices.
We investigate the wavelength conversion efficiency of quantum dot semiconductor optical amplifiers using nonde-generate four-wave mixing. Further we calculate the linewidth enhancement factor as a function of the injection current and determine the
Publikováno v:
2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC).
Quantum dot semiconductor optical amplifiers (QD-SOAs) are investigated in terms of their gain recovery performance and wavelength conversion efficiency using four wave mixing (FWM). Fast carrier-carrier scattering and a low amplitude phase coupling
Publikováno v:
Physical Review B. 82
In this work the ultrafast gain recovery dynamics of a quantum dot semiconductor optical amplifier is investigated on the basis of semiconductor Bloch equations including microscopically calculated carrier-carrier scattering rates between the two-dim
Autor:
Niels Majer, Eckehard Schöll
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics. 79(1 Pt 1)
We study the control of noise-induced spatiotemporal current density patterns in a semiconductor nanostructure (double-barrier resonant tunneling diode) by multiple time-delayed feedback. We find much more pronounced resonant features of noise-induce
Publikováno v:
New Journal of Physics. 14:053018
Carrier scattering is known to crucially affect the dynamics of quantum dot (QD) laser devices. We show that the dynamic properties of a QD laser under optical injection are also affected by Coulomb scattering processes and can be optimized by band s
Autor:
Jordi Gomis-Bresco, Niels Majer, Sabine Dommers-Völkel, Eckehard Schöll, Ulrike Woggon, Kathy Lüdge
Publikováno v:
Applied Physics Letters. 99:131102
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 99, 131102 (2011) and may be found at https://doi.org/10.1063/1.3643048. We inv
Autor:
Miriam Wegert, Jordi Gomis-Bresco, Ulrike Woggon, Niels Majer, Sabine Dommers-Völkel, Eckehard Schöll, Kathy Lüdge, Andreas Knorr
Publikováno v:
Semiconductor Science and Technology. 26:014008
In this work, the ultrafast gain dynamics of a quantum dot (QD)-based semiconductor optical amplifier (SOA) is modeled on the basis of semiconductor Bloch equations that include microscopically calculated nonlinear scattering rates between QD carrier