TITLE

Imaging of microwave fields using ultracold atoms

AUTHOR(S)
Böhi, Pascal; Riedel, Max F.; Hänsch, Theodor W.; Treutlein, Philipp
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/2/2010, Vol. 97 Issue 5, p051101
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report a technique that uses clouds of ultracold atoms as sensitive, tunable, and noninvasive probes for microwave field imaging with micrometer spatial resolution. The microwave magnetic field components drive Rabi oscillations on atomic hyperfine transitions whose frequency can be tuned with a static magnetic field. Readout is accomplished using state-selective absorption imaging. Quantitative data extraction is simple and it is possible to reconstruct the distribution of microwave magnetic field amplitudes and phases. While we demonstrate two-dimensional imaging, an extension to three-dimensional imaging is straightforward. We use the method to determine the microwave near-field distribution around a coplanar waveguide integrated on an atom chip.
ACCESSION #
52802680

 

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