Painted loading: a toolkit for loading spatially large optical tweezer arrays [dataset]

Walker, Mitchell J (Durham University, UK); Jones, Matthew P A (Durham University, UK); Moriya, Ryuji (Durham University, UK); Segal, Jack D (Durham University, UK); Xu, Zhongxiao (Durham University, UK /  Shanxi University, China); Gallagher, Liam A P (Durham University, UK); Leroux, Frederic (Durham University, UK); Hill, Matthew (Durham University, UK)

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Painted loading: a toolkit for loading spatially large optical tweezer arrays [dataset] Open Access

Arrays of neutral atoms in optical tweezers are widely used in quantum simulation and computation, and precision frequency metrology. The capabilities of these arrays are enhanced by maximising the number of available sites. Here we increase the spatial extent of a two-dimensional array of 88Sr atoms by sweeping the frequency of the cooling light to move the atomic reservoir across the array. We load arrays with vertical heights of > 100 μm, exceeding the height of an array loaded from a static reservoir by a factor of > 3. We investigate the site-to-site atom number distribution, tweezer lifetime, and temperature, achieving an average temperature across the array of 1.49(3) μK. By controlling the frequency sweep we show it is possible to control the distribution of atoms across the array, including uniform and non-uniformly loaded arrays, and arrays with selectively loaded regions. We explain our results using a rate equation model which is in good qualitative agreement with the data.

Descriptions

Resource type: Dataset
Contributors: Creator: Walker, Mitchell J ¹
Data curator: Walker, Mitchell J ¹
Moriya, Ryuji ¹
Segal, Jack D ¹
Gallagher, Liam A P ¹
Hill, Matthew ¹
Xu, Zhongxiao ²
Leroux, Frederic ¹
Contact person: Jones, Matthew P A ¹

¹ Durham University, UK
² Durham University, UK / Shanxi University, China
Funder: Engineering and Physical Sciences Research Council
Research methods
Other description
Keyword: Optical tweezer array
Atomic ensembles
Ultracold atoms
Magneto-optical trap
Atomic clock
Painted loading
Subject: Optical tweezers
Location
Language
Cited in
Identifier: ark:/32150/r2jw827b70j
doi:10.15128/r2jw827b70j
Rights: Creative Commons Attribution 4.0 International (CC BY)
Publisher: Durham University
Date Created

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Depositor: M.J. Walker
Date Uploaded: 4 September 2025, 14:09:22
Date Modified: 22 October 2025, 14:10:42
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Last modified: 2025:09:18 17:46:27+01:00

Filename: Painted loading a toolkit for loading spatially large optical tweezer arrays [dataset].zip

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