Response of a Bell–Bloom Magnetometer to a Magnetic Field of Arbitrary Direction

Ding, Zicheng; Yuan, Jie; Long, Xingwu

doi:10.3390/s18051401

Cited by 11 publications

(9 citation statements)

References 32 publications

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“…The three-axis atomic magnetometer for a variety of experimental configuration has been demonstrated [9][10][11][12]. Here we have extended the study on single beam three axis atomic magnetometer described in ref-10, that has important features for space applications.…”

Section: Introductionmentioning

confidence: 67%

“…The semi-classical density matrix calculation is a vital tool for detail analysis of the system. However, many important attributes of the involved mechanism can be addressed by the Bloch equation that describes the evolution of the spin polarization close to the experimental conditions [9,11,12,14]. Since we are working near zero magnetic field, the dynamics of the spin can be approximated by the Bloch equation.…”

Section: Theoretical Descriptionmentioning

confidence: 99%

“…Thus, the observed signal is related to the optical rotation of laser beam due to spin polarization along z axis ( ). Unlike prior-works withneglected bias field[9,11,12,14], we are interested in studying the response of to three axis magnetic field in presence of small bias-fields. Thus, the steady state solution of Bloch equation without neglecting any…”

mentioning

confidence: 99%

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Characterization of polarimetric based three axis atomic magnetometer

Pradhan

Behera

2019

Sensors and Actuators A: Physical

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The operation of polarimetric based single beam three axis atomic magnetometer is studied. The magnetometer operates in presence of small bias magnetic field. Its salient features are compared with the analysis of Bloch equation. The sensitivity of the device along three orthogonal directions are measured in low frequency regime, where 1/f noise adversely affect the sensitivity. The cross talk among the three axes magnetic field measurements and relative phase shifts are analysed using Lissajous plot. The sensitivity of the magnetometer is found to be < 10 pT Hz -1/2 @400 mHz in any direction. The investigated magnetometer is suitable for space application, where overall size of the device is of prime importance.

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Section: Introductionmentioning

confidence: 67%

Section: Theoretical Descriptionmentioning

confidence: 99%

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Characterization of polarimetric based three axis atomic magnetometer

Pradhan

Behera

2019

Sensors and Actuators A: Physical

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“…Differing from Ref. [43], which reports a numerical study, in the Sect. 2 we develop an analytic perturbative model to evaluate the response of such system to TDFs.…”

Section: Introductionmentioning

confidence: 93%

“…Similarly to the case of Ref. [43], a Bell and Bloom magnetometer is considered as a test of the developed model, under conditions in which the driving field changes in time with TDF components both parallel and transverse with respect to the static (bias) term. The field is assumed to vary not necessarily slowly and by small but not necessarily vanishing amounts.…”

Section: Introductionmentioning

confidence: 99%

Spin dynamic response to a time dependent field

et al. 2021

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The dynamic response of a parametric system constituted by a spin precessing in a time dependent magnetic field is studied by means of a perturbative approach that unveils unexpected features, and is then experimentally validated. The first-order analysis puts in evidence different regimes: beside a tailorable low-pass-filter behaviour, a band-pass response with interesting potential applications emerges. Extending the analysis to the second perturbation order permits to study the response to generically oriented fields and to characterize several non-linear features in the behaviour of such kind of systems.

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A dual-axis high-order harmonic and single-axis phase-insensitive demodulation atomic magnetometer for in situ NMR detection of Xe

Luo

Zhang

Liu

et al. 2022

Journal of Applied Physics

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Based on the parametric oscillation process, we demonstrate the dual-axis phase-sensitive demodulation (PSD) and single-axis phase-insensitive demodulation (PISD) for the atomic magnetometer in an in situ nuclear magnetic resonance (NMR) detection system, which can separate the precession signals of NMR from the oscillating magnetic fields. The two orthogonal magnetic fields can be detected simultaneously and independently by selecting the optimal demodulation phases with the traditional PSD method. The response signals of the parametric modulation magnetometer demodulated with high order harmonic signals are evaluated, which is a new exploration. The first order harmonic demodulation can present the best sensitivity about 250 fT/Hz1/2. The high order harmonic demodulation technology supplies a twofold 3 dB bandwidth. With the PISD method, a single-axis demodulation technique is proposed. The transverse nuclear spin precession magnetic fields can be extracted effectively with the demodulation R signal outputs by setting a specific longitudinal modulation magnetic field amplitude, which is a new demodulation strategy compared with the traditional demodulation method for the NMR system.

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Response of a Bell–Bloom Magnetometer to a Magnetic Field of Arbitrary Direction

Cited by 11 publications

References 32 publications

Characterization of polarimetric based three axis atomic magnetometer

Characterization of polarimetric based three axis atomic magnetometer

Spin dynamic response to a time dependent field

A dual-axis high-order harmonic and single-axis phase-insensitive demodulation atomic magnetometer for in situ NMR detection of Xe

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