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arXiv 1208.4897physics.atom-phquant-ph
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原子芯片磁阱中玻色-爱因斯坦凝聚体的高分辨成像与光学控制

High-Resolution Imaging and Optical Control of Bose-Einstein Condensates in an Atom Chip Magnetic Trap

Evan A. Salim, Seth C. Caliga, Jonathan B. Pfeiffer, Dana Z. Anderson

摘要:

利用硅玻璃复合原子芯片实现了一种高分辨率超冷原子投影成像系统。原子芯片被金属化以实现磁捕获,而玻璃区域使得能够对驻留在芯片表面下方约100微米的磁阱中的原子进行高数值孔径光学访问。原子芯片作为真空系统的一面墙,这使得商业显微镜组件能够用于投影和成像。全息产生的光图案被用来将雪茄形的磁阱光学切片成单独的区域;这已经被用来同时产生多达四个玻色凝聚体。使用荧光技术,我们已经证明了在陷阱成像分辨率下降到2.5微米

英文摘要:

A high-resolution projection and imaging system for ultracold atoms is implemented using a compound silicon and glass atom chip. The atom chip is metalized to enable magnetic trapping while glass regions enable high numerical aperture optical access to atoms residing in the magnetic trap about 100 microns below the chip surface. The atom chip serves as a wall of the vacuum system, which enables the use of commercial microscope components for projection and imaging. Holographically generated light patterns are used to optically slice a cigar-shaped magnetic trap into separate regions; this has been used to simultaneously generate up to four Bose-condensates. Using fluorescence techniques we have demonstrated in-trap imaging resolution down to 2.5 microns

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