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Extended Source Interferometry in the Compact Regime



Bruno M. Pelle, Gregory W. Hoth, Stefan Riedl, John E. Kitching, Elizabeth A. Donley


We present an atom interferometer based on an expanding cloud of laser-cooled atoms sensitive to rotations along two axes and acceleration along one axis in an effective volume of 1 cm3. We observed spatially resolved fringes by imaging the expanding cloud after short free-fall durations. If the atom cloud does not start as a point source, a bias is introduced in the scale factor that differs from the simple point-source limit. We explored the scale factor deviation experimentally with different initial cloud sizes and will present our understanding of this important systematic.
Proceedings Title
The European Frequency and Time Forum (EFTF) 30th Conference
Conference Dates
April 4-7, 2016
Conference Location


Atomic gravimeter, atomic gyroscope, compact inertial sensor, Point Source Interferometry, scale factor bias.


Pelle, B. , Hoth, G. , Riedl, S. , Kitching, J. and Donley, E. (2016), Extended Source Interferometry in the Compact Regime, The European Frequency and Time Forum (EFTF) 30th Conference, York, -1 (Accessed July 16, 2024)


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Created April 4, 2016, Updated February 19, 2017