Raman scattering in high-Tc superconductors -- How relevant is the electron-phonon coupling in high-Tc superconductors? -- Anomalous diffusion and anomalous sound propagation in amorphous solids -- Anomalous electron diffusion in fractal systems at low temperatures -- Characterization of thin solid films and surfaces by infrared spectroscopy -- Mapping the composition of materials at the atomic level -- X-ray diffraction at surfaces -- On the theory of adsorption on semiconductor substrates -- Spectroscopic studies of metal/semiconductor interfaces -- Calculated atomic structures and electronic properties of clean and alkali covered GaAs(110) surfaces -- Raman spectroscopy at III–V semiconductor surfaces and overlayers in the monolayer region -- Scanning tunneling microscopy investigations of corrosive processes on Si(111) surfaces -- Wavelength tunable single mode laser diodes -- Picosecond time-resolved light scattering from coherent exciton states -- Optical properties of magnetically confined excitons -- Semimagnetic semiconductors in high magnetic fields -- Hot electrons—Electron-phonon interaction -- Intersubband excitations of inversion electrons in GaAs -- Resonant Raman scattering by quasi 2- and 1-dimensional electron systems -- Charging effects in quantum dots -- Lateral superlattices: Magnetoresistance, hall effect and commensurate orbits -- Optical properties of quasi-molecular structures: From single atoms to quantum dots.