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RESONANT ANISOTROPIC EMISSION IN RABBITT SPECTROSCOPY
| Title: | RESONANT ANISOTROPIC EMISSION IN RABBITT SPECTROSCOPY. |
 43 views 23 downloads |
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| Name(s): |
Ghomashi, Bejan M, Author Argenti, Luca, Committee Chair Douguet, Nicolas, Committee Member University of Central Florida, Degree Grantor |
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| Type of Resource: | text | |
| Date Issued: | 2018 | |
| Publisher: | University of Central Florida | |
| Language(s): | English | |
| Abstract/Description: | A variant of RABBITT pump-probe spectroscopy in which the attosecond pulse train comprises both even and odd harmonics of the fundamental IR probe frequency is explored to measure time-resolved photoelectron emission in systems that exhibit autoionizing states. It is shown that the group delay of both one-photon and two-photon resonant transitions is directly encoded in the energy-resolved photoelectron anisotropy as a function of the pump-probe time-delay. This principle is illustrated for a 1D model with symmetric zero-range potentials that supports both bound states and shape-resonances. The model is studied using both perturbation theory and solving the time-dependent Schodinger equation on a grid. Moreover, we study the case of a realistic atomic system, helium. In both cases, we demonstrate faithful reconstruction of the phase information for resonant photoemission. | |
| Identifier: | CFH2000451 (IID), ucf:45703 (fedora) | |
| Note(s): |
2018-08-01 B.S. College of Sciences, Physics Bachelors This record was generated from author submitted information. |
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| Subject(s): |
RABBITT spectroscopy high-harmonic generation ultrafast helium resonance |
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| Persistent Link to This Record: | http://purl.flvc.org/ucf/fd/CFH2000451 | |
| Restrictions on Access: | public | |
| Host Institution: | UCF |
