Multiaxis atom interferometry with a single-diode laser and a pyramidal magneto-optical trap
Xuejian Wu,Fei Zi,Jordan Dudley,Ryan J. Bilotta,Philip Canoza,Holger Müller +5 more
- Vol. 4, Iss: 12, pp 1545-1551
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TLDR
In this article, an atom interferometer measuring acceleration, rotation, and inclination by pointing Raman beams toward individual faces of a pyramidal mirror is demonstrated. But the method is not suitable for inertial sensing.Abstract:
Atom interferometry has become one of the most powerful technologies for precision measurements. To develop simple, precise, and versatile atom interferometers for inertial sensing, we demonstrate an atom interferometer measuring acceleration, rotation, and inclination by pointing Raman beams toward individual faces of a pyramidal mirror. Only a single-diode laser is used for all functions, including atom trapping, interferometry, and detection. Efficient Doppler-sensitive Raman transitions are achieved without velocity selecting the atom sample, and with zero differential AC Stark shift between the cesium hyperfine ground states, increasing signal-to-noise and suppressing systematic effects. We measure gravity along two axes (vertical and 45° to the vertical), rotation, and inclination with sensitivities of 6 μm/s2/Hz, 300 μrad/s/Hz, and 4 μrad/Hz, respectively. This work paves the way toward deployable multiaxis atom interferometers for geodesy, geology, or inertial navigation.read more
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Gravity surveys using a mobile atom interferometer
Xuejian Wu,Zachary Pagel,Bola Malek,Timothy H. Nguyen,Fei Zi,Daniel S. Scheirer,Holger Müller,Holger Müller +7 more
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Gravity surveys using a mobile atom interferometer
Xuejian Wu,Zachary Pagel,Bola Malek,Timothy H. Nguyen,Fei Zi,Daniel S. Scheirer,Holger Müller,Holger Müller +7 more
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Navigation-Compatible Hybrid Quantum Accelerometer Using a Kalman Filter
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Compact portable laser system for mobile cold atom gravimeters
TL;DR: A compact portable laser system for high-sensitivity mobile cold atom interferometers that could be restored to good operating status without internal realignment after 1200-km-long truck transportation.