27 citations · 70 across the 10 of their papers we have counts for
10 papers
Strategies for the alignment of electronic states in quantum-dot tunnel-injection lasers and their influence on the emission dynamics
Michael Lorke, Igor Khanonkin, Stephan Michael +3
In quantum-dot tunnel-injection lasers, the excited charge carriers are efficiently captured from the bulk states via an injector quantum well and then transferred into the quantum…
Carrier dynamics in quantum-dot tunnel-injection structures: microscopic theory and experiment
Michael Lorke, Igor Khanonkin, Stephan Michael +3
Tunneling-injection structures are incorporated in semiconductor lasers in order to overcome the fundamental dynamical limitation due to hot carrier injection by providing a carrie…
Optical amplification in a CDW-phase of a quasi-two dimensional material
Stephan Michael, Hans Christian Schneider
We study theoretically the quenching of a charge-density-wave phase in a model system of a quasi-two dimensional material, which includes both electron-hole and electron-phonon int…
Impact ionization dynamics in small band-gap 2D materials from a coherent phonon mechanism
Stephan Michael, Hans Christian Schneider
We study theoretically the role of carrier multiplication due to impact ionization after an ultrafast optical excitation in a model system of a quasi-two dimensional material with…
Carrier Dynamics in a Tunneling Injection Quantum Dot Semiconductor Optical Amplifier
I. Khanonkin, M. Lorke, S. Michael +4
The process of tunneling injection is known to improve the dynamical characteristics of quantum well and quantum dot lasers; in the latter, it also improves the temperature perform…
Performance of quantum-dot-based tunnel-injection lasers: A theoretical analysis
Michael Lorke, Stephan Michael, Marian Cepok +1
Tunnel-injection lasers promise advantages in modulation bandwidth and temperature stability in comparison to conventional laser designs. In this paper, we present results of a mic…
Interplay of structural design and interaction processes in tunnel-injection semiconductor lasers
Stephan Michael, Michael Lorke, Marian Cepok +2
Tunnel-injection lasers promise various advantages in comparison to conventional laser designs. In this paper, we present a theoretical analysis for the physics of the tunnel-injec…
Group-velocity slowdown in a double quantum-dot molecule
Stephan Michael, Weng W. Chow, Hans Christian Schneider
The slowdown of optical pulses due to quantum-coherence effects is investigated theoretically for an "active material" consisting of InGaAs-based double quantum-dot molecules. Thes…
Microscopic model for intersubband gain from electrically pumped quantum-dot structures
Stephan Michael, Weng W. Chow, Hans Christian Schneider
We study theoretically the performance of electrically pumped self-organized quantum dots as a gain material in the mid-IR range at room temperature. We analyze an AlGaAs/InGaAs ba…
Group-velocity slowdown in quantum-dots and quantum-dot molecules
Stephan Michael, Weng W. Chow, Hans Christian Schneider
We investigate theoretically the slowdown of optical pulses due to quantum-coherence effects in InGaAs-based quantum dots and quantum dot molecules. Simple models for the electroni…