Feedback-enhanced algorithm for aberration correction of holographic atom traps
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We show that a phase-only spatial light modulator can be used to generate non-trivial light distributions suitable for trapping ultracold atoms, when the hologram calculation is included within a simple and robust feedback loop that corrects for imperfect device response and optical aberrations. This correction reduces the discrepancy between target and experimental light distribution to the level of a few percent (root mean square error). We prove the generality of this algorithm by applying it to a variety of target light distributions of relevance for cold atomic physics.
Bruce , G D , Johnson , M , Cormack , E , Richards , D , Mayoh , J & Cassettari , D 2015 , ' Feedback-enhanced algorithm for aberration correction of holographic atom traps ' Journal of Physics B: Atomic, Molecular and Optical Physics , vol 48 , no. 11 , 115303 . DOI: 10.1088/0953-4075/48/11/115303
Journal of Physics B: Atomic, Molecular and Optical Physics
© 2015 IOP Publishing Ltd. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at http://dx.doi.org/10.1088/0953-4075/48/11/115303
The authors acknowledge funding from EPSRC UK and the Leverhulme Trust Research Program Grant RPG-2013-074.
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