Tracking the extensive three-dimensional motion of single ions by an engineered point-spread function

Yong-zhuang Zhou, Man-chao Zhang, Wen-bo Su, Chun-wang Wu, Yi Xie, Ting Chen, Wei Wu, Ping-xing Chen () and Jie Zhang ()
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Yong-zhuang Zhou: National University of Defense Technology
Man-chao Zhang: National University of Defense Technology
Wen-bo Su: National University of Defense Technology
Chun-wang Wu: National University of Defense Technology
Yi Xie: National University of Defense Technology
Ting Chen: National University of Defense Technology
Wei Wu: National University of Defense Technology
Ping-xing Chen: National University of Defense Technology
Jie Zhang: National University of Defense Technology

Nature Communications, 2024, vol. 15, issue 1, 1-7

Abstract: Abstract Three-dimensional (3D) imaging of individual atoms is a critical tool for discovering new physical phenomena and developing new technologies in microscopic systems. However, the current single-atom-resolved 3D imaging methods are limited to static circumstances or a shallow detection range. Here, we demonstrate a generic dynamic 3D imaging method to track the extensive motion of single ions by exploiting the engineered point-spread function (PSF). We show that the image of a single ion can be engineered into a helical PSF, thus enabling single-snapshot acquisition of the position information of the ion in the trap. A preliminary application of this technique is demonstrated by recording the 3D motion trajectory of a single trapped ion and reconstructing the 3D dynamical configuration transition between the zig and zag structures of a 5-ion crystal. This work opens the path for studies on single-atom-resolved dynamics in both trapped-ion and neutral-atom systems.

Date: 2024
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DOI: 10.1038/s41467-024-49701-3

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