How to build a magnetometer with thermal atomic vapor: A tutorial

Abstract

This article is designed as a step-by-step guide to optically pumped magnetometers based on alkali atomic vapor cells. We begin with a general introduction to atomic magneto-optical response, as well as expected magnetometer performance merits and how they are affected by main sources of noise. This is followed by a brief comparison of different magnetometer realizations and an overview of current research, with the aim of helping readers to identify the most suitable magnetometer type for specific applications. Next, we discuss some practical considerations for experimental implementations, using the case of an $M_z$ magnetometer as an example of the design process. Finally, an interactive workbook with real magnetometer data is provided to illustrate magnetometer-performance analysis.

arXiv comment52 pages, 9 figures, 3 tables. Submitted to New Journal of Physics as an invited review/tutorial for the special issue "Focus on Hot Atomic Vapors". Minor content and language errors corrected in v3

References in corpus (73)

• Optical Magnetometry
• Ultra-high sensitivity magnetic field and magnetization measurements with an atomic magnetometer
• Resonant nonlinear magneto-optical effects in atoms
• Quantum noise limited and entanglement-assisted magnetometry
• Sub-femtotesla scalar atomic magnetometer using multipass cells
• Magnetic sensitivity beyond the projection noise limit by spin squeezing
• Polarized alkali vapor with minute-long transverse spin-relaxation time
• NMR detection with an atomic magnetometer
• Squeezed-Light Optical Magnetometry
• Portable magnetometry for detection of biomagnetism in ambient environments
• A 20-Channel Magnetoencephalography System Based on Optically Pumped Magnetometers
• All-Optical Vector Atomic Magnetometer
• Can a quantum nondemolition measurement improve the sensitivity of an atomic magnetometer?
• High Bandwidth Atomic Magnetometery with Continuous Quantum Non-demolition Measurements
• Instrumentation for nuclear magnetic resonance in zero and ultralow magnetic field
• ${}^3$He-${}^{129}$Xe Comagnetometery using ${}^{87}$Rb Detection and Decoupling
• Relaxation of atomic polarization in paraffin-coated cesium vapor cells
• Nonlinear magneto-optical rotation with frequency-modulated light
• Precision Magnetometers for Aerospace Applications
• Search for topological defect dark matter with a global network of optical magnetometers
• Comagnetometer probes of dark matter and new physics
• Nonlinear Magneto-Optical Rotation with Amplitude-Modulated Light: AMOR
• Quantum Enhanced Magnetometer with Low-Frequency Squeezing
• Radiation trapping in coherent media
• Slow-light Faraday effect: an atomic probe with gigahertz bandwidth
• Integrated optically pumped magnetometer for measurements within Earth's magnetic field
• Search for exotic spin-dependent interactions with a spin-based amplifier
• Magnetocardiography on an isolated animal heart with a room-temperature optically pumped magnetometer
• Characterizing atomic magnetic gradiometers for fetal magnetocardiography
• Cs CPT magnetometer for cardio-signal detection in unshielded environment
• Floquet maser
• A large sample study of spin relaxation and magnetometric sensitivity of paraffin-coated Cs vapor cells
• Suppression of nonlinear Zeeman effect and heading error in earth-field-range alkali-vapor magnetometers
• Characterization of the Global Network of Optical Magnetometers to search for Exotic Physics (GNOME)
• Femtotesla direct magnetic gradiometer using a single multipass cell
• Stroboscopic back-action evasion in a dense alkali-metal vapor
• Investigation of Anti-Relaxation Coatings for Alkali-Metal Vapor Cells Using Surface Science Techniques
• Non-invasive detection of animal nerve impulses with an atomic magnetometer operating near quantum limited sensitivity
• Constraints on long-range spin-gravity and monopole-dipole couplings of the proton
• Signal tracking beyond the time resolution of an atomic sensor by Kalman filtering
• Active Underwater Detection with an Array of Atomic Magnetometers
• Sources of heading error in optically pumped magnetometers operated at Earth's magnetic field
• Magnetic Gradiometer for Detection of Zero- and Ultralow-Field Nuclear Magnetic Resonance
• Selective reflection from Rb layer with thickness below $\lambda$/12 and applications
• Heading errors in all-optical alkali-vapor magnetometers in geomagnetic fields
• Characterization of high-temperature performance of cesium vapor cells with anti-relaxation coating
• Ultrasensitive 3He magnetometer for measurements of high magnetic fields
• Shot-noise-limited magnetometer with sub-pT sensitivity at room temperature
• A Cold Atom Radio-Frequency Magnetometer
• Unshielded portable optically pumped magnetometer for the remote detection of conductive objects using eddy current measurements
• Detection of low-conductivity objects using eddy current measurements with an optical magnetometer
• Herriott-cavity-assisted all-optical atomic vector magnetometer
• Response of atomic spin-based sensors to magnetic and nonmagnetic perturbations
• Orientation-to-alignment conversion and spin squeezing
• Dual channel self-oscillating optical magnetometer
• A Voigt effect based 3D vector magnetometer
• A Highly Drift-stable Atomic Magnetometer for Fundamental Physics Experiments
• F-resolved Magneto-optical Resonances at D1 Excitation of Cesium: Experiment and Theory
• Fast-field-cycling, ultralow-field nuclear magnetic relaxation dispersion
• Stand-off magnetometry with directional emission from sodium vapors
• Search for plant biomagnetism with a sensitive atomic magnetometer
• Self-adaptive loop for external disturbance reduction in differential measurement set-up
• Parametric resonance magnetometer based on elliptically polarized light yielding three-axis measurement with isotropic sensitivity
• Sub-millimetric ultra-low-field MRI detected in situ by a dressed atomic magnetometer
• Improving Sensitivity of an Amplitude-Modulated Magneto-Optical Atomic Magnetometer using Squeezed Light
• Improving Students' Understanding of Lock-In Amplifiers
• A sound card based multi-channel frequency measurement system
• All-Optical Single-Species Cesium Atomic Comagnetometer with Optical Free Induction Decay Detection
• Level-crossing resonances on open atomic transitions in a buffered Cs vapor cell: Linewidth narrowing, high contrast and applications to atomic magnetometry
• Measurement of the ratio between g-factors of the ground states of ${}^{87}$Rb and ${}^{85}$Rb
• Nuclear hyperpolarization of 3He by magnetized plasmas
• Investigations of optical pumping for magnetometry using an auto-locking laser system
• Floquet description of Optically Pumped Magnetometers

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• What can a GNOME do? Search targets for the Global Network of Optical Magnetometers for Exotic physics searches
• A modular optically pumped magnetometer system
• Sensing with discrete time crystals
• Additive Manufacturing of functionalised atomic vapour cells for next-generation quantum technologies
• All-optical atomic magnetometry using an elliptically polarized amplitude-modulated light wave
• Investigating the hyperfine systematic error and relative phase in low spin-polarization alkali FID magnetometers
• Universal Reconstruction of Complex Magnetic Profiles with Minimum Prior Assumptions
• An Approximate Bayesian Approach to Optimal Input Signal Design for System Identification
• Time-optimal single-scalar control on a qubit of unitary dynamics
• Optimal and efficient inference tools for field tracking with precessing spins
• Local, mm-scale ${}^1$H magnetic resonance imaging using atomic vapors
• Atomic magnetometry based on the ground-state Hanle effect in an elliptically polarized light wave