Gerchberg-Saxton algorithm for fast and efficient atom rearrangement in optical tweezer traps

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We demonstrate fast and efficient neutral atom rearrangements in an optical tweezer-trap array, using an enhanced hologram generation algorithm. The conventional Gerchberg-Saxton (GS) algorithm is modified to include zero-padding hologram expansion for optical tweezer sharpness, weighted iteration feedback for reduced crosstalk, and phase induction for successive phase continuity. With the new GS algorithm, we experimentally demonstrate detect-free formation of 2D atom arrays with various geometries, achieving a high loading probability of 0.98 for up to N similar to 30 atoms. Furthermore, the hologram movie calculation speed is enhanced to cover a computational scalability up to O(10(3)). (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Publisher
OPTICAL SOC AMER
Issue Date
2019-02
Language
English
Article Type
Article
Citation

OPTICS EXPRESS, v.27, no.3, pp.2184 - 2196

ISSN
1094-4087
DOI
10.1364/OE.27.002184
URI
http://hdl.handle.net/10203/250475
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
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