Multichannel optical atomic magnetometer operating in unshielded environment

Abstract

A multi-channel atomic magnetometer operating in an unshielded environment is described and characterised. The magnetometer is based on D1 optical pumping and D2 polarimetry of Cs vapour contained in gas-buffered cells. Several technical implementations are described and discussed in detail. The demonstrated sensitivity of the setup is 100fT/Hz^1/2 when operating in the difference mode.

9 pages, 5 figures, appearing in Appl.Phys.B

References in corpus (17)

• Optical Magnetometry
• A Revised Experimental Upper Limit on the Electric Dipole Moment of the Neutron
• Sub-femtotesla scalar atomic magnetometer using multipass cells
• NMR detection with an atomic magnetometer
• A room temperature 19-channel magnetic field mapping device for cardiac signals
• Atomic magnetic resonance induced by amplitude-, frequency-, or polarization-modulated light
• Cs CPT magnetometer for cardio-signal detection in unshielded environment
• Magnetic induction tomography using an all-optical ${}^{87}$Rb atomic magnetometer
• Anatomical MRI with an atomic magnetometer
• A high-sensitivity push-pull magnetometer
• Microtesla NMR J-coupling spectroscopy with an unshielded atomic magnetometer
• Dual channel self-oscillating optical magnetometer
• Magnetometer suitable for Earth field measurement based on transient atomic response
• All-optical magnetometry for NMR detection in a micro-Tesla field and unshielded environment
• Stray Magnetic Field Compensation with a Scalar Atomic Magnetometer
• Larmor frequency dressing by an anharmonic transverse magnetic field
• Measurement of XeI and XeII velocity in the near exit plane of a low-power Hall effect thruster by light induced fluorescence spectroscopy

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• Tri-axial time-dependent magnetic field calibrated in-situ by harmonic analysis of adiabatically evolving atomic spins
• Fast switching coil system for sample premagnetization in an unshielded ultra-low-field Nuclear Magnetic Resonance experiment
• Studying and applying magnetic dressing with a Bell and Bloom magnetometer
• Electromagnetic Induction Imaging: Signal Detection Based on Tuned-Dressed Optical Magnetometry