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Manipulating cold atoms through a high-resolution compact system based on a multimode fiber

机译:通过基于多模光纤的高分辨率紧凑型系统操纵冷原子

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We show that a standard multimode optical fiber can act as a high-resolution ultra-compact tool to manipulate cold atoms in setups with limited optical access. Spatial light modulators allow us to generate control beams at the in-vacuum fiber end by digital optical phase conjugation. With no additional in-vacuum optics, this system reaches a similar to 1 mu m resolution for a transverse size of only 225 mu m. As a demonstration, we use it to optically transport cold atoms towards the in-vacuum fiber end, to load them in optical microtraps, and to re-cool them in optical molasses. This work shows that the rapid progress of optics in complex media opens new, to the best of our knowledge, perspectives for spatially constrained quantum technology platforms combining cold atoms with other optical, electronic, or opto-mechanical systems. (C) 2020 Optical Society of America
机译:我们表明,标准多模光纤可以充当高分辨率超紧凑型工具,以在具有有限的光学访问中操纵寒冷原子。 空间光调制器允许我们通过数字光学相位缀合在真空光纤端处产生控制梁。 没有额外的真空光学器件,该系统达到类似于1μm的横向尺寸,仅为225μm。 作为演示,我们使用它将冷原子光学传输朝向真空纤维端,以将它们装载在光学微缩中,并在光学糖蜜中重新冷却。 这项工作表明,复杂媒体中光学的快速进展将开启新的,以我们的知识,用于与其他光学,电子或光机械系统相结合的空间约束量子技术平台的透视。 (c)2020美国光学学会

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