Conjugate gradient minimisation approach to generating holographic traps for ultracold atoms

Harte, Tiffany and Bruce, Graham D. and Keeling, Jonathan and Cassettari, Donatella (2014) Conjugate gradient minimisation approach to generating holographic traps for ultracold atoms. Optics Express, 22 (22). pp. 26548-26558. ISSN 1094-4087 (https://doi.org/10.1364/OE.22.026548)

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Abstract

Direct minimisation of a cost function can in principle provide a versatile and highly controllable route to computational hologram generation. Here we show that the careful design of cost functions, combined with numerically efficient conjugate gradient minimisation, establishes a practical method for the generation of holograms for a wide range of target light distributions. This results in a guided optimisation process, with a crucial advantage illustrated by the ability to circumvent optical vortex formation during hologram calculation. We demonstrate the implementation of the conjugate gradient method for both discrete and continuous intensity distributions and discuss its applicability to optical trapping of ultracold atoms.

  • Item type:Article
    ID code:54005
    Dates:
    Date
    Event
    1 November 2014
    Published
    21 September 2014
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:18 Aug 2015 14:40
    Last modified:11 Nov 2024 11:10
    URI:https://strathprints.strath.ac.uk/id/eprint/54005
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