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

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

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 p, 300 μrad∕s∕ √ Hz p, and 4 μrad∕ √ Hz p, respectively. This work paves the way toward deployable multiaxis atom interferometers for geodesy, geology, or inertial navigation.

Original languageEnglish (US)
Pages (from-to)1545-1551
Number of pages7
JournalOptica
Volume4
Issue number12
DOIs
StatePublished - Dec 20 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Keywords

  • Atom optics
  • Interferometry
  • Laser cooling
  • Metrology

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