Frankfurt 2006 – wissenschaftliches Programm

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A: Atomphysik

A 19: Wechselwirkung mit VUV and X-FEL Licht

A 19.2: Hauptvortrag

Donnerstag, 16. März 2006, 14:30–15:00, H7

Generation of Extreme Intense Coherent Femto- and Attosecond Pulses — •Ulrich Teubner and Dietrich von der Linde — Fachbereich Physik, Universität Duisburg-Essen, Lotharstr. 1, 47048 Duisburg

It is well known that today coherent radiation in the extreme ultraviolet (XUV) could be obtained via the generation of high-order harmonics (HH) in gases. However, although extraordinary results such as HH with attosecond pulse duration have been demonstrated, there are difficulties with phase matching and the maximum applicable laser intensity limits the intensity of the harmonics. On the other hand it is less well known that HH generation down to the XUV is also possible at solid density surfaces and this without the mentioned disadvantages. The generated HH are as well coherent, of femto- or even attosecond pulse duration and moreover they could be very intense. We will give an overview on this topic and discuss HH generation with femtosecond laser pulses up to relativistic intensities which results in extreme intense XUV pulses.