A Time-dependent study of photoelectron angular distributions due to laser-induced continuum structures

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dc.contributor.author Grum-Grzhimailo, Alexei
dc.contributor.author Bartschat, Klaus
dc.contributor.author Strakhova, S.I.
dc.date.accessioned 2007-05-31T20:29:08Z
dc.date.available 2007-05-31T20:29:08Z
dc.date.issued 2007-05-31T20:29:08Z
dc.identifier.uri http://hdl.handle.net/2092/568
dc.description.abstract The coupling of an atomic continuum to a discrete state by a strong laser field leads to so-called “laser-induced continuum structures” (LICS). In photo-ionization studies, LICS manifest themselves as autoionization-like resonances in various observable quantities. To date only very little is known about vector correlations in the region of LICS: the vast majority of publications deal with integral and angle-independent characteristics. With the advent of bright VUV and soft X-ray radiation sources (free-electron lasers, lasers based upon high-harmonic generation, and next-generation synchrotrons), experimental studies of vector correlations in the region of LICS are becoming feasible. We study the influence of LICS on the angular distribution of photo-electrons in the femtosecond time domain by solving the time-dependent Schrödinger equation directly on a space-time grid. This avoids possible restrictions due to the pulse duration and strength imposed by rotating-wave or adiabatic approximations. As a by-product of our calculations, we also gain access to the motion of the electron cloud, which allows us to visualize the dynamics of the process. en
dc.description.sponsorship This work is supported, in part, by the United States National Science Foundation under PHY-0244470 and the Russian Foundation for Basic Research under 04-02-17236. en
dc.format.extent 2287557 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.relation.ispartofseries DUCURS 2006;24
dc.subject Photoelectron angular distributions en
dc.subject Photoelectron spectroscopy en
dc.subject Ultraviolet spectrometry en
dc.subject Photoionization en
dc.subject Photoelectrons en
dc.title A Time-dependent study of photoelectron angular distributions due to laser-induced continuum structures en
dc.type Presentation en


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    Poster sessions and presentation from the Drake University Conference on Undergraduate Research in the Sciences held each April at Olmsted Center on the Drake campus.

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