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| 001 | 646122 | ||
| 005 | 20260219210801.0 | ||
| 024 | 7 | _ | |a urn:nbn:de:gbv:18-ediss-135077 |2 URN |
| 024 | 7 | _ | |a 10.3204/PUBDB-2026-00724 |2 datacite_doi |
| 037 | _ | _ | |a PUBDB-2026-00724 |
| 041 | _ | _ | |a English |
| 100 | 1 | _ | |a Azzolin, Agata |0 P:(DE-H253)PIP1094389 |b 0 |e Corresponding author |g female |
| 245 | _ | _ | |a Advances in High-Order Harmonic Sources and Applications to Free-Electron Laser Pulse Characterization |f 2021-11-01 - 2025-12-31 |
| 260 | _ | _ | |c 2026 |
| 300 | _ | _ | |a 162 |
| 336 | 7 | _ | |a Output Types/Dissertation |2 DataCite |
| 336 | 7 | _ | |a DISSERTATION |2 ORCID |
| 336 | 7 | _ | |a PHDTHESIS |2 BibTeX |
| 336 | 7 | _ | |a Thesis |0 2 |2 EndNote |
| 336 | 7 | _ | |a Dissertation / PhD Thesis |b phd |m phd |0 PUB:(DE-HGF)11 |s 1771497375_3015810 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a doctoralThesis |2 DRIVER |
| 502 | _ | _ | |a Dissertation, University of Hamburg, 2026 |c University of Hamburg |b Dissertation |d 2026 |o 2026-02-09 |
| 520 | _ | _ | |a Attosecond and few-femtosecond light pulses provide the time resolution required to track and control the very first instants of electron dynamics in molecules and condensed matter. Since its first demonstration, High-order Harmonic Generation (HHG) sources have been at the core of experimental schemes aiming at unravelling ultrafast electron motion. This thesis reports advancements in high-order harmonic sources and their applications to both solid-state spectroscopy and Free-Electron Laser (FEL) pulse characterization. First, it demonstrates and rationalizes efficient soft X-ray HHG in the so-called overdriven regime enabled by a custom-designed differentially pumped glass chip. This development directly addresses some of the technical challenges of conventional high-photon-energy HHG sources, providing a more accessible approach. Second, this work presents results on solidstate High-order Harmonic Generation (sHHG) spectroscopy in crystalline, amorphous, and semi-periodic TiO2 samples. The experiment showcases the potential of HHG not only as a source, but also as a spectroscopic probe of the valence electrons governing materials functional properties. Finally, this thesis reports the experimental validation of Double-Blind Holography (DBH) of ultrashort FEL pulses. This is a fully optical platform for single-shot temporal haracterization, phase retrieval, and few-femtosecond resolution delay tagging that is based on the interference with an unknown external field, in this case a standard HHG source. Together, these developments extend the capabilities of high-order harmonic sources, opening new scenarios for investigating and controlling ultrafast electron dynamics in atoms, molecules and condensed matter, both with table-top schemes and at FELs. |
| 536 | _ | _ | |a 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) |0 G:(DE-HGF)POF4-631 |c POF4-631 |f POF IV |x 0 |
| 536 | _ | _ | |a 6G2 - FLASH (DESY) (POF4-6G2) |0 G:(DE-HGF)POF4-6G2 |c POF4-6G2 |f POF IV |x 1 |
| 588 | _ | _ | |a Dataset connected to DataCite |
| 693 | _ | _ | |0 EXP:(DE-H253)CFEL-Exp-20150101 |5 EXP:(DE-H253)CFEL-Exp-20150101 |e Experiments at CFEL |x 0 |
| 693 | _ | _ | |a FLASH2 |f FLASH2 Beamline FL26 |1 EXP:(DE-H253)FLASHII-20150901 |0 EXP:(DE-H253)F-FL26-20150901 |6 EXP:(DE-H253)F-FL26-20150901 |x 1 |
| 700 | 1 | _ | |a Calegari, Francesca |0 P:(DE-H253)PIP1023238 |b 1 |e Thesis advisor |
| 700 | 1 | _ | |a Drescher, Markus |0 P:(DE-H253)PIP1003945 |b 2 |e Thesis advisor |
| 856 | 4 | _ | |u https://ediss.sub.uni-hamburg.de/handle/ediss/12204 |
| 856 | 4 | _ | |u https://bib-pubdb1.desy.de/record/646122/files/phd_thesis_AzzolinAgata_2026-02-09.pdf |y OpenAccess |
| 856 | 4 | _ | |u https://bib-pubdb1.desy.de/record/646122/files/phd_thesis_AzzolinAgata_2026-02-09.pdf?subformat=pdfa |x pdfa |y OpenAccess |
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| 914 | 1 | _ | |y 2026 |
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| 920 | _ | _ | |l yes |
| 920 | 1 | _ | |0 I:(DE-H253)FS-ATTO-20170403 |k FS-ATTO |l Attosecond Science and Technology |x 0 |
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