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(Color online) Photograph of the cavity assembly with the top mirror removed. The atomic beam path is visualized by the arrow. The four posts are used to mount the upper mirror. The piezoelectric actuators, centered by the white Teflon cylinders, surround the posts.
(Color online) Measurement of at . Transition probability as a function of the delay between microwave injection and the atomic probe crossing the cavity. The points (circles, triangles, and squares) correspond to three initial field energies , , and , respectively. The fits (solid lines) result from a simple absorption model including saturation. They are equidistantly shifted in time with respect to one another by . Each point is the average of 1600 atomic detections.
(Color online) Cavity damping time vs mirror temperature . The horizontal scale is reciprocal and the vertical one logarithmic. The dots are experimental. The solid line is a fit providing a gap value . Below , saturates at .
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