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Zeemanov upočasnjevalnik cezijevih atomov
Rosenstein, Nejc (Author), Žitko, Rok (Mentor) More about this mentor... This link opens in a new window, Jeglič, Peter (Co-mentor)

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Abstract
V magistrskem delu opišem eksperimentalni sistem za lasersko hlajenje cezijevih atomov, ki smo ga postavili v Laboratoriju za hladne atome na Institutu Jožef Stefan. Glavni poudarek je na Zeemanovem upočasnjevalniku, ki ga uporabljamo za upočasnitev curka atomov. Predstavljene so teoretične osnove, na podlagi katerih sem naredil njegov načrt, ter postopek izdelave. Primernost narejenega izdelka za uporabo v eksperimentu ovrednotim s simulacijo Monte Carlo upočasnjevanja atomov. V delo vključim tudi meritve, ki smo jih naredili ob prvih preizkusih laserskega hlajenja. Upočasnjevalnik omogoči lovljenje atomov v magneto-optični pasti, v kateri jih nato ohladimo do temperature okoli 1 mK. Končni cilj je ohladitev do nekaj nK. Tu se omejim na opis delov eksperimenta, na katerih smo delali vzporedno z razvojem upočasnjevalnika in ki so neposredno povezani z njegovim delovanjem.

Language:Slovenian
Keywords:cezij, ultravisok vakuum, atomski curek, lasersko hlajenje, Zeemanov upočasnjevalnik, magneto-optična past, hladni atomi
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:FMF - Faculty of Mathematics and Physics
Year:2018
COBISS.SI-ID:3212132 Link is opened in a new window
Views:646
Downloads:380
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Secondary language

Language:English
Title:Zeeman slower for cesium atoms
Abstract:
In this thesis I describe the experimental setup for laser cooling and trapping of cesium atoms which was developed in the Cold Atoms Laboratory at the Jožef Stefan Institute. I put a special focus on the device which slows down the atomic beam - the Zeeman slower. Its development is described in detail as well as the necessary theoretical background. The suitability of the constructed Zeeman slower is evaluated with the Monte Carlo simulation of the beam slowing process. The description is rounded up with the measurements that were made during the early tests of our laser cooling apparatus. Our Zeeman slower produces a beam of slow atoms which travels towards the magneto-optical trap, where the atoms are cooled down to the temperature around 1 mK. Long-term goal is to achieve the temperatures around few nK, but the entire path towards that goal is not presented in this work. Instead, the description of the experiment is limited only to the components that were developed simultaneously with the Zeeman slower and which are closely related to it.

Keywords:cesium, ultrahigh vacuum, atomic beam, laser cooling, Zeeman slower, magneto-optical trap, cold atoms

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