Vector Magnetometry Exploiting Phase-Geometry Effects in a Double-Resonance Alignment Magnetometer

@article{Ingleby2018VectorME,
  title={Vector Magnetometry Exploiting Phase-Geometry Effects in a Double-Resonance Alignment Magnetometer},
  author={Stuart J. Ingleby and Carolyn O'Dwyer and Paul F. Griffin and Aidan S. Arnold and Erling Riis},
  journal={Physical Review Applied},
  year={2018}
}
Double-resonance optically pumped magnetometers are an attractive instrument for unshielded magnetic field measurements due to their wide dynamic range and high sensitivity. Use of linearly polarised pump light creates alignment in the atomic sample, which evolves in the local static magnetic field, and is driven by a resonant applied field perturbation, modulating the polarisation of transmitted light. We show for the first time that the amplitude and phase of observed first- and second… 

Figures and Tables from this paper

Vector measurement of pico tesla magnetic fields using an optically pumped magnetometer by varying pump beam direction

Optically pumped magnetometers (OPMs) with ultrahigh sensitivities are expected to be alternative magnetic sensors to superconducting quantum interference devices. Already studies on vector

Second-order effects in parametric-resonance magnetometers based on atomic alignment

Optically-pumped magnetometers (OPM) based on parametric resonance allow real-time tri-axial measurement of very small magnetic fields with a single optical access to the gas cell. Most of these

Dependence on sensitivity patterns of bias fields for vector measurements using optically pumped vapor magnetometers

The optical light shift effect is an all-optical technique to create magnetic bias fields to determine the vector components of the magnetic field using a scalar optically pumped magnetometer. We

Self-Calibrating Vector Atomic Magnetometry through Microwave Polarization Reconstruction.

This work presents a method for converting a naturally scalar atomic magnetometer into a vector magnetometer by exploiting the polarization dependence of hyperfine transitions in rubidium atoms, and fully determines the polarization ellipse of an applied microwave field.

Laser-detected magnetic resonance spectra dressed by a radio-frequency field.

The separation between the two sidebands under resonance shows a highly linear proportion to the amplitude of the dressing field, which may provide a useful scheme for the measurement of radio-frequency magnetic field and magnetic imaging.

Theory of double-resonance alignment magnetometers based on atomic high-order multipole moments using effective master equations

We present a theoretical study of double-resonance alignment magnetometers using linearly polarized light, in which the effect of atomic high-order multipole moments is considered. Starting from the

Herriott-cavity-assisted all-optical atomic vector magnetometer

We report an all-optical atomic vector magnetometer using dual Bell-Bloom optical pumping beams in a Rb vapor cell. This vector magnetometer consists of two orthogonal optical pumping beams, with

Dual-Mode Dead-Zone-Free Double-Resonance Alignment-Based Magnetometer

Magneto-optical double-resonance magnetometers are attractive candidates for sensitive measurements of magnetic fields but suffer from a fundamental problem known as the ``dead zone'': certain

Transient dynamics of atomic spin in the spin-exchange-relaxation-free regime.

It is demonstrated that coil constants can be calibrated by analyzing the precession frequency of the transient dynamics of atomic spin, and the experimental results show that the coil constants are 114.25 ± 0.02 nT/mA and 114.12‬±‬0.04 nT-axis, respectively.

A digital alkali spin maser

Self-oscillating atomic magnetometers, in which the precession of atomic spins in a magnetic field is driven by resonant modulation, offer high sensitivity and dynamic range. Phase-coherent feedback

Orientational effects on the amplitude and phase of polarimeter signals in double resonance atomic magnetometry

Double resonance optically pumped magnetometry can be used to measure static magnetic fields with high sensitivity by detecting a resonant atomic spin response to a small oscillating field

All-optical vector atomic magnetometer.

An all-optical magnetometer capable of measuring the magnitude and direction of a magnetic field using nonlinear magneto-opticals rotation in cesium vapor is demonstrated.

Nonlinear magneto-optical rotation with modulated light in tilted magnetic fields

Larmor precession of laser-polarized atoms contained in antirelaxation-coated cells, detected via nonlinear magneto-optical rotation (NMOR), is a promising technique for a new generation of

High-precision control of static magnetic field magnitude, orientation, and gradient using optically pumped vapour cell magnetometry.

An integrated system of hardware and software allowing precise definition of arbitrarily oriented magnetic fields up to |B| = 1 μT within a five-layer Mumetal shield is described, which is used to empirically map Mx magnetometer signal amplitude as a function of the static field (B0) orientation.

Dead-zone-free atomic magnetometry with simultaneous excitation of orientation and alignment resonances.

A simple polarization modulation scheme is demonstrated that simultaneously creates coherent population trapping (CPT) in orientation and alignment, thereby eliminating dead zones in atomic magnetometers.

Three axis vector atomic magnetometer utilizing polarimetric technique.

  • S. Pradhan
  • Physics
    The Review of scientific instruments
  • 2016
The three axis vector magnetic field measurement based on the interaction of a single elliptically polarized light beam with an atomic system is described and can be easily expanded to make spatial array of detectors and/or high sensitivity field gradient measurement as required for biomedical application.

A microfabricated optically-pumped magnetic gradiometer.

A microfabricated atomic magnetic gradiometer based on optical spectroscopy of alkali atoms in the vapor phase, which is useful for applications that require both sensitive gradient field information and high common-mode noise cancellation.

Unshielded three-axis vector operation of a spin-exchange-relaxation-free atomic magnetometer

We describe a vector alkali–metal magnetometer that simultaneously and independently measures all three components of the magnetic field. Using a feedback system, the total field at the location of

Nonlinear magneto-optical rotation in the presence of a radio-frequency field.

We report measurements of nonlinear magneto-optical rotation (NMOR) for the D2 line of 87Rb atoms in an antirelaxation-coated vapor cell in the presence of a radio-frequency (rf) field. The

A vector rubidium magnetometer

A version of the rubidium magnetometer has been developed which provides complete vector information of field variations without the use of artificially applied fields. Two perpendicular light beams