The impulsive excitation and phase-sensitive detection of coherent phonons and phonon-
polaritons provide a detailed insight into the dynamical properties of matter. The …

Carbon nanotubes are exceptionally interesting from a fundamental research point of view.
Many concepts of one-dimensional physics have been verified experimentally such as …

Photon upconversion is an elementary light–matter interaction process in which an
absorbed photon is re-emitted at higher frequency after extracting energy from the medium …

The Al x Ga 1− x As/GaAs heterostructure system is potentially of great importance for many
high-speed electronics and optoelectronic devices, because the lattice parameter difference …

We present a comprehensive analysis of double-resonant Raman scattering in graphite and
derive an analytical expression for the Raman cross section of the D mode in one …

Quantum well (QW) based optoelectronic devices have been rapidly evolving in the last few
years. The observation of the quantum-confined Stark effect, which gives an absorption …

We have studied the optical absorption properties ofa GaAslAlAs short-period superlattice at
room temperature in an electric field perpendicular to the layers. Several pronounced optical …

We investigate coherent Bloch oscillations in GaAs/Al x Ga 1− x As superlattices with
electronic miniband widths larger than the optical phonon energy. In these superlattices the …

We report electroreflectance (ER) detection of the resonant coupling between the Wannier-
Stark localization states in a GaAS (6.4 nm)/AlAs (0.9 nm) superlattice. We find that the ER …

The effects of the exciton-phonon interaction on the properties of quantum wells and
superlattices are reviewed. The phonon sidebands of the absorption and …