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arXiv · 2407.20699

Ultra-precise holographic optical tweezers array

Yuki Torii Chew·Martin Poitrinal·Takafumi Tomita·Sota Kitade·Jorge Mauricio·Kenji Ohmori·Sylvain de Léséleuc
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Abstract

Neutral atoms trapped in microscopic optical tweezers have emerged as a growing platform for quantum science. Achieving homogeneity over the tweezers array is an important technical requirement, and our research focuses on improving it for holographic arrays generated with a Spatial Light Modulator (SLM). We present a series of optimization methods to calculate better holograms, fueled by precise measurement schemes. These innovations enable to achieve intensity homogeneity with a relative standard deviation of 0.3 %, shape variations below 0.5 %, and positioning errors within 70 nm. Such ultra-precise holographic optical tweezers arrays allow for the most demanding applications in quantum science with atomic arrays.

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Yuki Torii Chew, Martin Poitrinal, Takafumi Tomita, Sota Kitade, Jorge Mauricio, Kenji Ohmori, Sylvain de Léséleuc. 2024-07-30. Ultra-precise holographic optical tweezers array. https://doi.org/10.1103/physreva.110.053518

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