Monday, July 23, 2012

1207.4964 (Pascal Böhi et al.)

Simple microwave field imaging technique using hot atomic vapor cells    [PDF]

Pascal Böhi, Philipp Treutlein
We demonstrate a simple technique for microwave field imaging using alkali atoms in a vapor cell. The microwave field to be measured drives Rabi oscillations on atomic hyperfine transitions, which are detected in a spatially resolved way using a laser beam and a CCD camera. Our vapor cell geometry enables single-shot recording of two-dimensional microwave field images with 350 {\mu}m spatial resolution. Using microfabricated vapor cell arrays, a resolution of a few micrometers seems feasible. All vector components of the microwave magnetic field can be imaged. Our apparatus is simple and compact and does not require cryogenics or ultra-high vacuum.
View original: http://arxiv.org/abs/1207.4964

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