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The single electron transport driven by surface acoustic waves (SAWs) is analyzed in the low power regime. The close-to-equilibrium regime might help in opening up a new route towards precisely controlled single electron transport and a quantum standard of current with low uncertainty at gigahertz frequencies.

The potential of the combined magneto-optic indicator film (MOIF) and magnetic force microscopy (MFM) is demonstrated for lithographically patterned Co Pt film with out-of plane anisotropy. MOIF magnetization data reveal magnetization reversals in micron-sized structures, while the corresponding MFM images related the results to the magnetic configuration of the elements.

A new quantitative imaging technique is developed based on magneto-optical indicator films (MOIF) combined with inverse magnetostatic methods in order to determine magnetic stray field and magnetization distributions of thin magnetic patterns and arrays. A concept is described for combining MOIF imaging with magnetic force microscopy, which has allowed for quantitative magnetization imaging with a resolution down to 10 nm.

The distortion of voltage pulses measured with external electro-optic sampling (EOS) is investigated by using the electro-optic effect of the GaAs substrate. The optimum working height can be used to improve the accuracy of the characterization of ultrafast electrical device using external EOS probes.

Shift and injection currents in unstrained, undoped (110)-grown GaAs/Al0.3Ga0.7As quantum wells are generated with a single optical pulse and detected through free-space terahertz experiments. It is possible to generate both currents alone along certain crystal directions or to simultaneously generate them along the same crystal direction by properly choosing the polarization state of the excitation pulse.

Atomic and magnetic force microscopy measurements on magnetic iron particles produced by a self-assembly method is presented. Magnetic force microscopy suggests that the particles can be permanently magnetized with external fields of different orientations.

An experimental technique is presented for the detection of pump-induced transmission and phase changes with high sensitivity and ultrafast temporal resolution over an arbitrarily wide time window.