Hannover 2013 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 10: Precision spectroscopy of atoms and ions II (with Q)

A 10.1: Vortrag

Montag, 18. März 2013, 16:30–16:45, F 428

Microwave field imaging using microfabricated vapor cells — •Guan-Xiang Du1, Andrew Horsley1, Matthieu Lucien Pellaton1, Christoph Affolderbach2, Gaetano Mileti2, and Philipp Treutlein11Department of Physics, University of Basel, CH-4056 Basel, Switzerland — 2Laboratoire Temps-Fréquence - University of Neuchâtel, 2000 Neuchâtel, Switzerland

We have recently demonstrated a technique for 2D microwave (mw) field imaging using alkali atoms in a milimeter-thick vapor cell.1 Micrometer-scale miniaturized microwave circuits in industry, however require microfabricated vapor cell to look at details into the vicinity of the circuit waveguides. The 3D spatial resolution is achieved via micrometer-scale sensing volume with one dimension confined by the thickness of the vapor cell and the other two by introducing a buffer gas. The factors that suppress the coherence time include, collisions of alkali atoms with cell wall, alkali-buffer gas collisions, and alkali-alkali spin exchange collisions, are investigated. We report the status of our experiments on mw field imaging with such microcells.

1Pascal Bohi and Philipp Treutlein, Appl. Phys. Lett. 101, 181107 (2012).

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