Laser pulse characterization using high harmonics from solids
Abstract
We demonstrate high-harmonic generation for the time-domain observation of the electric field (HHG-TOE) and use it to measure the waveform of ultrashort mid-infrared (MIR) laser pulses interacting with ZnO thin-films or WS2 monolayers. The working principle relies on perturbing HHG in solids with a weak replica of the pump pulse. We measure the duration of few-cycle pulses at 3200 nm, in reasonable agreement with the results of established pulse characterization techniques. Our method provides a straightforward approach to accurately characterize femtosecond laser pulses used for HHG experiments right at the point of interaction.
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Mohanad Awad
PhD student
Sebastian Hell
PhD student
I’m curious about atoms and molecules and their dynamics when exposed to ultrashort laser and XUV light pulses as well as ultrafast laser technology.
Matthias Kübel
Junior Research Group Leader
My research interests include attosecond science, atomic and molecular physics and ultrafast laser technology.