The authors review the physics of ultrafast dynamics in semiconductors and their
heterostructures, including both the observed experimental phenomena and the theoretical …

A unified microscopic theoretical framework for the calculation of optical excitations in
molecular and semiconductor materials is presented. The hierarchy of many-body density …

The field of ultrafast spectroscopy of semiconductors and their nanostruc tures continues to
be an active field of research. Exciting new developments have taken place since the first …

We discuss the interaction of coherent electromagnetic fields with the semiconductor band
edge in a dynamic density matrix model. Due to the influence of the Coulomb-interaction the …

A density matrix approach is used in combination with a tight-binding model to describe
electron transport in terahertz quantum cascade lasers and is incorporated into a Monte …

We report experiments in which we investigated the ultrafast dynamics of competing
nonradiative channels for hot electron mechanisms in various polycrystalline metal samples …

Small semiconductor devices can be separated into regions where the electron transport
has classical character, neighboring with regions where the transport requires a quantum …

The carrier dynamics in photoexcited semiconductors is studied in a quantum kinetic
approach based on the density-matrix formalism. Besides the memory effects related to the …

Abstract Space-dependent Maxwell-Bloch equations are derived for the description of
spatiotemporal dynamics of spatially inhomogeneous semiconductor lasers. The dynamics …

Abstract Previously [J. Appl. Phys. 83, 270 (1998)] the Pauli master equation has been
argued to constitute an equation suitable for the simulation of steady-state electron transport …