Feedback-enhanced algorithm for aberration correction of holographic atom traps

Graham David Bruce, Matthew Johnson, Edward Cormack, David Richards, James Mayoh, Donatella Cassettari

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)
10 Downloads (Pure)

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 (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.
Original languageEnglish
Article number115303
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume48
Issue number11
Early online date8 May 2015
DOIs
Publication statusPublished - 14 Jun 2015

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