Dokument: Rydberg spectroscopy in a gas of ultracold Ytterbium atoms
| Titel: | Rydberg spectroscopy in a gas of ultracold Ytterbium atoms | |||||||
| URL für Lesezeichen: | https://docserv.uni-duesseldorf.de/servlets/DocumentServlet?id=59958 | |||||||
| URN (NBN): | urn:nbn:de:hbz:061-20220627-113518-6 | |||||||
| Kollektion: | Dissertationen | |||||||
| Sprache: | Englisch | |||||||
| Dokumententyp: | Wissenschaftliche Abschlussarbeiten » Dissertation | |||||||
| Medientyp: | Text | |||||||
| Autor: | Halter, Christian [Autor] | |||||||
| Dateien: |
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| Beitragende: | Prof. Dr. Görlitz, Axel [Gutachter] Prof. Dr. Heinzel, Thomas [Gutachter] | |||||||
| Stichwörter: | Rydberg, Ytterbium, spectroscopy | |||||||
| Dewey Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik » 530 Physik | |||||||
| Beschreibung: | Rydberg atoms with their fascinating properties have become of great interest in quantum optics. Particularly ultra-cold Rydberg atoms with their strong interaction are a promising tool for quantum simulations and information processing.
In recent years, Rydberg atoms with two valence electrons have further expanded the already diverse range of applications. Here I present a study of ultra-cold ytterbium Rydberg atoms. Another promising atom species, which could expand the range of applications even further. In the scope of this thesis, I present a simple and robust spectroscopy, the MOT depletion spectroscopy. With this technique it was possible to excite and identify several Rydberg states of Yb which had not been measured before and confirm already identified states. With the MOT depletion method, it is also possible to determine the polarizabilities of 1S0 and 1P1 Rydberg series. The measured polarizabilities were compared with numerically determined values, using a semi-classical model. Both, the measurements and the numerical values are consistent with each other. To gain further knowledge about the Yb Rydberg states we also implemented the electric field ionization spectroscopy. This spectroscopy allows to study the ionization behavior of the Yb Rydberg states of the 1S0 and 1D2 series. The exploration of the ionization process revealed a diabatic and adiabatic passages of the bound Rydberg states through the Stark manifold before they ionize. The electric eld ionization method gives also the opportunity to measure the black-body reduced lifetimes of the Yb Rydberg states. These lifetimes are important information as they provide a time frame for further experiments. The measured black-body reduced lifetimes of the 1S0 and 1D2 series are presented and discussed in this thesis. | |||||||
| Lizenz: |  Urheberrechtsschutz | |||||||
| Fachbereich / Einrichtung: | Mathematisch- Naturwissenschaftliche Fakultät » WE Physik » Experimentalphysik | |||||||
| Dokument erstellt am: | 27.06.2022 | |||||||
| Dateien geändert am: | 27.06.2022 | |||||||
| Promotionsantrag am: | 20.09.2021 | |||||||
| Datum der Promotion: | 21.03.2022 |
