Heidelberg 2015 – wissenschaftliches Programm
A 20.6: Vortrag
Mittwoch, 25. März 2015, 12:30–12:45, C/HSW
In situ characterization of few-cycle laser pulses in transient absorption spectroscopy — •Alexander Blättermann1, Chrsitian Ott1,2, Andreas Kaldun1, Thomas Ding1, Martin Laux1, Veit Stooß1, Marc Rebholz1, Maximilian Hartmann1, and Thomas Pfeifer1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg , Germany — 2Chemistry Department, University of California, 94720 Berkeley CA, United States
We demonstrate a method that allows to extract the pulse duration and intensity of few-cycle laser pulses directly from a measured extreme ultraviolet transient-absorption spectrum. Since we analyze the signature of the laser pulse interacting with the spectroscopy target, the pulse is characterized in situ. By doing so, we combine laser pulse characterization and strong-field driven quantum dynamics measurement in a single experiment. The precise knowledge of the driving laser pulse is important to fully understand the highly nonlinear optical response of quantum systems to strong laser fields.