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arXiv · 1409.3151

Feedback-enhanced algorithm for aberration correction of holographic atom traps

Graham D. Bruce·Matthew Y. H. Johnson·Edward Cormack·David Richards·James Mayoh·Donatella Cassettari
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Abstract

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 (RMS error). We prove the generality of this algorithm by applying it to a variety of target light distributions of relevance for cold atomic physics.

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Graham D. Bruce, Matthew Y. H. Johnson, Edward Cormack, David Richards, James Mayoh, Donatella Cassettari. 2014-09-10. Feedback-enhanced algorithm for aberration correction of holographic atom traps. https://doi.org/10.1088/0953-4075/48/11/115303

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