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Hannover 2020 – scientific programme

The DPG Spring Meeting in Hannover had to be cancelled! Read more ...

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P: Fachverband Plasmaphysik

P 11: Laser plasma and laser applications 1

P 11.4: Talk

Wednesday, March 11, 2020, 12:00–12:15, b302

Ion Spectroscopy of Single-Digit-fs Laser Pulse Plasmas with respect to different Laser Parameters — •Jan Riedlinger, Bastian Hagmeister, and Georg Pretzler — Institut für Laser- und Plasmaphysik, Heinrich-Heine-Universität Düsseldorf

The exposure of solids to high intensity sub-10-fs laser pulses creates an extremely transient high temperature plasma, of which many properties are not fully predictable today, in contrast to plasmas created with longer laser pulses. One example is the achieved ionization state as well as the energy distribution of the emitted ions. We performed measurements to characterise the ion emission of such plasmas. We present here experimental results for a set of varied laser parameters, such as intensity, pulse energy and duration as well as different solids as target materials, to attain a better understanding of plasma formation and the subsequent dynamics. Most of all, the peak intensity has been examined over multiple orders of magnitude by means of our new attenuator up to maximum values of 1018 W/cm2 at the shortest pulse durations of about 8 fs.

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