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Flux Limitations of Continuous Atom Lasers

Morrison, Adele

Description

If atom lasers are to transform many fields of physics, as well as find applications in industry, the most essential development needed is increased atom flux. In this thesis we report on the experimental observation of fundamental limits on the flux of continuous atom lasers. The flux produced by the commonly used radio frequency outcoupler, can not be arbitrarily increased by increasing the strength of the outcoupling. Above a critical Rabi frequency, the atom laser shows large classical...[Show more]

dc.contributor.authorMorrison, Adele
dc.date.accessioned2005-06-28
dc.date.accessioned2006-03-27T02:13:10Z
dc.date.accessioned2011-01-05T08:31:02Z
dc.date.available2006-03-27T02:13:10Z
dc.date.available2011-01-05T08:31:02Z
dc.identifier.otherb43751362
dc.identifier.urihttp://hdl.handle.net/1885/43155
dc.description.abstractIf atom lasers are to transform many fields of physics, as well as find applications in industry, the most essential development needed is increased atom flux. In this thesis we report on the experimental observation of fundamental limits on the flux of continuous atom lasers. The flux produced by the commonly used radio frequency outcoupler, can not be arbitrarily increased by increasing the strength of the outcoupling. Above a critical Rabi frequency, the atom laser shows large classical density fluctuations, due to coupling between the multiple Zeeman states. In our system this critical Rabi frequency is about 1 kHz. Futhermore, at large coupling strengths (> 4 kHz for our experimetnal parameters), the continuous atom laser output completely switches off, as a result of the atoms remaining trapped in a bound state. In addition to the investigations of the radio frequency outcoupler, we have demonstrated the first continuous Raman outcoupled atom laser. Preliminary data indicates that the Raman outcoupler will be flux limited in a similar way to the radio frequency outcoupler.
dc.format.extent1635005 bytes
dc.format.extent353 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeapplication/octet-stream
dc.language.isoen_AU
dc.subjectHonours thesis
dc.subjectatom laser
dc.subjectBose-Einstein condensate
dc.titleFlux Limitations of Continuous Atom Lasers
dc.typeThesis (Honours)
local.description.refereedno
local.identifier.citationmonthmay
local.identifier.citationyear2005
local.identifier.eprintid3146
local.rights.ispublishedno
dc.date.issued2005
local.contributor.affiliationThe Australian National University
local.contributor.affiliationPhysics Department
local.identifier.doi10.25911/5d7a292d59772
local.mintdoimint
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