W. Pfeiffer

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Adaptive shaping of the phase and amplitude of femtosecond laser pulses has been developed into an efficient tool for the directed manipulation of interference phenomena, thus providing coherent control over various quantum-mechanical systems. Temporal resolution in the femtosecond or even attosecond range has been demonstrated, but spatial resolution is(More)
We introduce a spectroscopic method that determines nonlinear quantum mechanical response functions beyond the optical diffraction limit and allows direct imaging of nanoscale coherence. In established coherent two-dimensional (2D) spectroscopy, four-wave-mixing responses are measured using three ingoing waves and one outgoing wave; thus, the method is(More)
The Gas Insulated Line (GIL) is a reliable system for electrical energy transport. One of the important parts of the GIL is the insulating gas that can be stressed not only with lightning impulses, but also with very fast transients (VFT) if a busduct connector is being closed or opened. An alternative gaseous medium is needed in order to substitute(More)
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