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| 001 | 295216 | ||
| 005 | 20211110133447.0 | ||
| 024 | 7 | _ | |a 10.3204/DESY-THESIS-2016-002 |2 datacite_doi |
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| 041 | _ | _ | |a English |
| 088 | 1 | _ | |a DESY-THESIS-2016-002 |
| 088 | _ | _ | |a DESY-THESIS-2016-002 |2 DESY |
| 100 | 1 | _ | |a Rompotis, Dimitrios |0 P:(DE-H253)PIP1014316 |b 0 |e Corresponding author |g male |
| 245 | _ | _ | |a A single-shot nonlinear autocorrelation approach for time-resolved physics in the vacuum ultraviolet spectral range |f 2011-04-16 - 2015-01-01 |
| 260 | _ | _ | |a Hamburg |c 2016 |b Verlag Deutsches Elektronen-Synchrotron |
| 300 | _ | _ | |a 179 |
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| 336 | 7 | _ | |a Report |0 PUB:(DE-HGF)29 |2 PUB:(DE-HGF) |m report |
| 336 | 7 | _ | |a Dissertation / PhD Thesis |b phd |m phd |0 PUB:(DE-HGF)11 |s 1526995842_16609 |2 PUB:(DE-HGF) |
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| 490 | 0 | _ | |a DESY-THESIS |0 PERI:(DE-600)1437131-5 |x 1435-8085 |
| 502 | _ | _ | |a Dissertation, Universität Hamburg, 2015 |c Universität Hamburg |b Dissertation |d 2015 |
| 520 | _ | _ | |a In this work, a single-shot temporal metrology scheme operating in the vacuum-extreme ultraviolet spectral range has been designed and experimentally implemented. Utilizing an anti-collinear geometry, a second-order intensity autocorrelation measurement of a vacuum ultraviolet pulse can be performed by encoding temporal delay information on the beam propagation coordinate. An ion-imaging time-of-flight spectrometer, offering micrometer resolution has been set-up for this purpose. This instrument enables the detection of a magnified image of the spatial distribution of ions exclusively generated by direct two photon absorption in the combined counter-propagating pulse focus and thus obtain the second-order intensity autocorrelation measurement on a single-shot basis.Additionally, an intense VUV light source based on high-harmonic generation has been experimentally realized. It delivers intense sub-20 fs Ti:Sa fifth-harmonic pulses utilizing a loose-focusing geometry in a long Ar gas cell. The VUV pulses centered at 161.8 nm reach pulse energies of 1.1 μJ per pulse, while the corresponding pulse duration is measured with a second-order, fringe-resolved autocorrelation scheme to be 18 ± 1 fs on average. Non-resonant, two-photon ionization of Kr and Xe and three-photon ionization of Ne verify the fifth-harmonic pulse intensity and indicate the feasibility of multi-photon VUV pump/VUV probe studies of ultrafast atomic and molecular dynamics. Finally, the extended functionality of the counter-propagating pulse metrology approach is demonstrated by a single-shot VUV pump/VUV probe experiment aiming at the investigation of ultrafast dissociation dynamics of molecular oxygen excited in the Schumann-Runge continuum at 162 nm. |
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| 700 | 1 | _ | |a Drescher, Markus |0 P:(DE-H253)PIP1003945 |b 1 |e Thesis advisor |
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