Kim Hyosub, Kim Minhyuk, Lee Woojun, Ahn Jaewook
Opt Express. 2019 Feb 4;27(3):2184-2196. doi: 10.1364/OE.27.002184.
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 defect-free formation of 2D atom arrays with various geometries, achieving a high loading probability of 0.98 for up to N ∼ 30 atoms. Furthermore, the hologram movie calculation speed is enhanced to cover a computational scalability up to 𝒪(10).
我们使用一种增强的全息图生成算法，在光镊陷阱阵列中展示了快速高效的中性原子重排。对传统的格尔奇贝格 - 萨克斯顿（GS）算法进行了修改，以包括用于提高光镊锐度的零填充全息图扩展、用于减少串扰的加权迭代反馈以及用于连续相位连续性的相位诱导。利用新的GS算法，我们通过实验证明了具有各种几何形状的二维原子阵列的无缺陷形成，对于多达N ∼ 30个原子实现了高达0.98的高加载概率。此外，全息图电影计算速度得到提高，以涵盖高达𝒪(10)的计算可扩展性。
