期刊
NATURE PHYSICS
卷 4, 期 12, 页码 949-953出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nphys1102
关键词
-
资金
- DFG
- Forschungsfond of the University of Mainz
Our knowledge of ultracold quantum gases is strongly influenced by our ability to probe these objects. In situ imaging combined with single-atom sensitivity is an especially appealing scenario, as it can provide direct information on the structure and the correlations of such systems. For a precise characterization a high spatial resolution is mandatory. In particular, the perspective to study quantum gases in optical lattices makes a resolution well below one micrometre highly desirable. Here, we report on a novel microscopy technique, which is based on scanning electron microscopy and allows for the detection of single atoms inside a quantum gas with a spatial resolution of better than 150 nm. We document the great functionality of this technique by precise density measurements of a trapped Bose-Einstein condensate and the first experimental demonstration of single-site addressability in a submicrometre optical lattice.
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