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

Research output: Contribution to journalArticle

Abstract

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 perturbation. Determination of the resonant frequency yields a scalar measurement of static field (B_0) magnitude. We present calculations and experimental data showing that the on-resonance polarimeter signal of light transmitted through an atomic vapour in arbitrarily oriented $B_0$ may be modelled by considering the evolution of alignment terms in atomic polarisation. We observe that the amplitude and phase of the magnetometer signal are highly dependent upon B_0 orientation, and present precise measurements of the distribution of these parameters over the full 4 pi solid angle.
LanguageEnglish
Number of pages6
JournalPhysical Review A
Publication statusAccepted/In press - 13 Jul 2017

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polarimeters
magnetic measurement
magnetometers
resonant frequencies
alignment
vapors
scalars
perturbation
sensitivity
polarization
magnetic fields

Keywords

  • magnetometry
  • static magnetic field
  • atomic polarisation

Cite this

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title = "Orientational effects on the amplitude and phase of polarimeter signals in double resonance atomic magnetometry",
abstract = "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 perturbation. Determination of the resonant frequency yields a scalar measurement of static field (B_0) magnitude. We present calculations and experimental data showing that the on-resonance polarimeter signal of light transmitted through an atomic vapour in arbitrarily oriented $B_0$ may be modelled by considering the evolution of alignment terms in atomic polarisation. We observe that the amplitude and phase of the magnetometer signal are highly dependent upon B_0 orientation, and present precise measurements of the distribution of these parameters over the full 4 pi solid angle.",
keywords = "magnetometry, static magnetic field, atomic polarisation",
author = "Ingleby, {Stuart J.} and Carolyn O'Dwyer and Griffin, {Paul F.} and Arnold, {Aidan S.} and Erling Riis",
year = "2017",
month = "7",
day = "13",
language = "English",
journal = "Physical Review A - Atomic, Molecular, and Optical Physics",
issn = "1050-2947",

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T1 - Orientational effects on the amplitude and phase of polarimeter signals in double resonance atomic magnetometry

AU - Ingleby, Stuart J.

AU - O'Dwyer, Carolyn

AU - Griffin, Paul F.

AU - Arnold, Aidan S.

AU - Riis, Erling

PY - 2017/7/13

Y1 - 2017/7/13

N2 - 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 perturbation. Determination of the resonant frequency yields a scalar measurement of static field (B_0) magnitude. We present calculations and experimental data showing that the on-resonance polarimeter signal of light transmitted through an atomic vapour in arbitrarily oriented $B_0$ may be modelled by considering the evolution of alignment terms in atomic polarisation. We observe that the amplitude and phase of the magnetometer signal are highly dependent upon B_0 orientation, and present precise measurements of the distribution of these parameters over the full 4 pi solid angle.

AB - 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 perturbation. Determination of the resonant frequency yields a scalar measurement of static field (B_0) magnitude. We present calculations and experimental data showing that the on-resonance polarimeter signal of light transmitted through an atomic vapour in arbitrarily oriented $B_0$ may be modelled by considering the evolution of alignment terms in atomic polarisation. We observe that the amplitude and phase of the magnetometer signal are highly dependent upon B_0 orientation, and present precise measurements of the distribution of these parameters over the full 4 pi solid angle.

KW - magnetometry

KW - static magnetic field

KW - atomic polarisation

UR - https://journals.aps.org/pra/issues

M3 - Article

JO - Physical Review A - Atomic, Molecular, and Optical Physics

T2 - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

SN - 1050-2947

ER -