Hannover 2013 – scientific programme
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A: Fachverband Atomphysik
A 8: Precision measurements and metrology II (with Q)
A 8.2: Talk
Monday, March 18, 2013, 14:30–14:45, F 128
High resolution Sagnac atom interferometer — •Gunnar Tackmann, Peter Berg, Sven Abend, Teresa Feld, Katja Baxmann, Paul Kaebert, Christian Schubert, Wolfgang Ertmer, and Ernst M. Rasel — Institut für Quantenoptik, Leibniz Universität Hannover
We present a compact dual source cold-atom gyroscope with flat parabolic atomic trajectories in which an area of 19 mm2 is realised on a baseline of 13.7 cm. This gyroscope resolves a rotation rate of 5.3· 10−7 rad/s at one second, mainly limited by inertial noise, and reaches a final sensitivity of 3· 10−8 rad/s. We introduce ways to further improve the stability of the device and to increase its sensitivity to the 10−9 rad/s regime by monitoring the rotational noise with auxiliary seismic sensors.
This work is supported by the DFG, the cluster of excellence QUEST, and IQS.