We propose metasurface holograms as a novel platform to generate optical trap arrays for cold atoms with high quality, efficiency, and thermal stability. We developed design and fabrication methods to create dielectric, phase-only metasurface holograms based on titanium dioxide. We experimentally demonstrated optical trap arrays of various geometries, including periodic and aperiodic configurations with dimensions ranging from 1D to 3D and up to a few hundred trap sites. We characterized the performance of the holographic metasurfaces in terms of the positioning accuracy, size and intensity uniformity of the generated traps, and power handling capability of the dielectric metasurfaces. Our proposed platform has great potential for enabling fundamental studies of quantum many-body physics, and quantum simulation and computation tasks. The compact form factor, passive nature, good power handling capability, and scalability of generating high-quality, large-scale arrays also make the metasurface platform uniquely suitable for realizing field-deployable devices and systems based on cold atoms.

我们建议将超表面全息图作为一种新型平台，为冷原子生成高质量、高效率和热稳定性的光阱阵列。我们开发了设计和制造方法来创建基于二氧化钛的介电、纯相位超表面全息图。我们通过实验证明了各种几何形状的光阱阵列，包括尺寸从 1D 到 3D 以及多达数百个陷阱位点的周期性和非周期性配置。我们根据生成的陷阱的定位精度、尺寸和强度均匀性以及电介质超表面的功率处理能力来表征全息超表面的性能。我们提出的平台在实现量子多体物理学、量子模拟和计算任务的基础研究方面具有巨大潜力。