ausblenden:
Schlagwörter:
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Zusammenfassung:
Near-infrared, few-cycle laser
pulses are an important tool for state-of-the-art spectroscopy methods. However,
their characterization brings about challenges as the femtosecond field
transients are out of reach for electronic devices. Therefore, the objective of
this thesis is the characterization of such laser pulses by means of two different
techniques, namely the dispersion scan and attosecond streaking. Both methods
were set up and are—together with the underlying theory—reviewed in detail.
The dispersion scan has the goal of retrieving the spectral phase of the laser
pulses by using an iterative algorithm, which was implemented and is evaluated
here. Measurement results demonstrate the usefullness of the dispersion scan
for day-to-day pulse characterization.
For the attosecond streaking setup with its newly developed design, first test
measurements are reported here. The electron time-of-flight spectrometer at
the heart of the attosecond streaking setup extends the scope of the existing
attosecond transient absorption spectroscopy beamline towards photoelectron
studies and the characterization of attosecond pulses from high-order harmonic
generation.
