Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/132132
Title: ATOMIC 2S->3P TRANSITION FOR PRODUCTION AND INVESTIGATION OF A FERMIONIC LITHIUM QUANTUM GAS
Authors: CHRISTIAN WOLFGANG ERNST GROSS
Keywords: ultracold atoms, quantum gas, photoassociation spectroscopy, laser cooling
Issue Date: 15-Aug-2016
Source: CHRISTIAN WOLFGANG ERNST GROSS (2016-08-15). ATOMIC 2S->3P TRANSITION FOR PRODUCTION AND INVESTIGATION OF A FERMIONIC LITHIUM QUANTUM GAS. ScholarBank@NUS Repository.
Abstract: In this thesis, the all-optical production of a lithium 6 quantum gas based on laser cooling on the 2S-3P transition is described. The magneto-optical trap on this transition is studied and optimized, resulting in high phase-space densities. These conditions facilitate a direct and efficient loading of a large-volume crossed optical dipole trap at a moderate laser power. The same trapping configuration is used for near-adiabatic transport of the atomic cloud into a glass cell, for evaporative cooling and for the production of a molecular BEC. For a photoassociation spectroscopy measurement to investigate long-range molecular states correlated to the 2S-3P asymptote, an ion detection system was implemented in the experimental setup. In a measurement performed a MOT, no spectroscopic features were observed. A calculation of the free-to-bound transition strength is presented in order to analyze the negative result and to evaluate the prospect for future investigations.
URI: http://scholarbank.nus.edu.sg/handle/10635/132132
Appears in Collections:Ph.D Theses (Open)

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