A nanosecond-resolved atomic hydrogen magnetometer

Spiliotis, Alexandros K.; Xygkis, Michalis; Tazes, Konstantinos; Katsoprinakis, G. E.; Sofikitis, Dimitris; Vasilakis, Georgios; Rakitzis, T. Peter

doi:10.1039/d1cp03171f

Cited by 3 publications

(2 citation statements)

References 27 publications

(47 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, magnetic field detection lies at the heart of many scientific and technological applications, which can benefit significantly from advances in magnetometry [1].Different magnetic field sensors have been developed which offer distinct advantages and are attractive for particular applications. In general terms, an ideal magnetometer should present high-sensitivity, wide bandwidth detection, highperformance over a large dynamic range and operating conditions, as well as capability for miniaturization when used for magnetic field imaging.Recently, a new type of atomic magnetometer was demonstrated based on high-density spin-polarized atomic H (SPH) [2], which has the potential to address satisfactorily the above requirements for magnetometry. The spinpolarized ensemble is produced by photo-dissociating hydrohalide gas with a circularly-polarized laser pulse [3][4][5].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Magnetometry with spin polarized Hydrogen from molecular photo-dissociation

Tazes¹,

Spiliotis²,

Xygkis³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

In a recent publication [arXiv:2010.14579], we introduced a new type of atomic magnetometer, which relies on hydrohalide photo-dissociation to create high-density spin-polarized hydrogen. Here, we extend our previous work and present a detailed theoretical analysis of the magnetometer signal and its dependence on time. We also derive the sensitivity for a spin-projection noise limited magnetometer, which can be applied to an arbitrary magnetic field waveform.A broad range of physical objects and processes generate magnetic fields which upon detection can convey important information about the nature and structure of their origin. As a result, magnetic field detection lies at the heart of many scientific and technological applications, which can benefit significantly from advances in magnetometry [1].Different magnetic field sensors have been developed which offer distinct advantages and are attractive for particular applications. In general terms, an ideal magnetometer should present high-sensitivity, wide bandwidth detection, highperformance over a large dynamic range and operating conditions, as well as capability for miniaturization when used for magnetic field imaging.Recently, a new type of atomic magnetometer was demonstrated based on high-density spin-polarized atomic H (SPH) [2], which has the potential to address satisfactorily the above requirements for magnetometry. The spinpolarized ensemble is produced by photo-dissociating hydrohalide gas with a circularly-polarized laser pulse [3][4][5]. Magnetic field detection is achieved by monitoring the dynamics of the H hyperfine coherences, which are created in the optical pumping process without the need for external magnetic fields.This paper is an extension of the work presented in [2], analytically deriving equations for the spin-dynamics, the magnetometer signal and the quantum spin-projection noise.We will consider the magnetometer scheme with mutually orthogonal directions for optical pumping, magnetic field direction and spin-probing, as shown in Fig. 1. Without loss of generality we take the magnetic field to be in the z direction, the optical pumping along the y axis and the probe axis in the x direction. Monitoring of spins is realized with an inductive pick-up coil, which detects the magnetic flux generated by the H spins. Since the electron magnetic moment is more than three orders of magnitude larger than the proton magnetic moment, the coil is to a very good approximation only sensitive to the H electron spins. In the following, we will assume a pickup coil with a response time much shorter than the hyperfine interaction period and neglect complications arising from a non-spherical polarized region or from geometrical factors in the coupling of the magnetic field from spins to the coil. For simplicity, we will assume that the observable is d Ŝx dt , where Ŝi expresses the dimensionless electron spin operator in the i direction.

show abstract

mentioning

confidence: 99%

“…Recently, a new type of atomic magnetometer was demonstrated based on high-density spin-polarized atomic H (SPH) [2], which has the potential to address satisfactorily the above requirements for magnetometry. The spinpolarized ensemble is produced by photo-dissociating hydrohalide gas with a circularly-polarized laser pulse [3][4][5].…”

mentioning

confidence: 99%

Magnetometry with spin polarized Hydrogen from molecular photo-dissociation

Tazes¹,

Spiliotis²,

Xygkis³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Interspecies spin-noise correlations in hot atomic vapors

Mouloudakis,

Vouzinas,

Margaritakis

et al. 2023

Phys. Rev. A

View full text Add to dashboard Cite

Ultra-sensitive measurement of small optical rotation angles using quantum entanglement based on a quasi-Wollaston prism beam splitter

Wang,

Zhu,

Zhu

2024

Opt. Express

View full text Add to dashboard Cite

The measurement of optical rotation is fundamental to optical atomic magnetometry. Ultra-high sensitivity has been achieved by employing a quasi-Wollaston prism as the beam splitter within a quantum entanglement state, complemented by synchronous detection. Initially, we designed a quasi-Wollaston prism and intentionally rotated the crystal axis of the exit prism element by a specific bias angle. A linearly polarized light beam, incident upon this prism, is divided into three beams, with the intensity of each beam correlated through quantum entanglement. Subsequently, we formulated the equations for optical rotation angles by synchronously detecting the intensities of these beams, distinguishing between differential and reference signals. Theoretical analysis indicates that the measurement uncertainty for optical rotation angles, when using quantum entanglement, exceeds the conventional photon shot noise limit. Moreover, we have experimentally validated the effectiveness of our method. In DC mode, the experimental results reveal that the measurement uncertainty for optical rotation angles is 4.7 × 10−9 rad, implying a sensitivity of 4.7 × 10−10 rad/Hz1/2 for each 0.01 s measurement duration. In light intensity modulation mode, the uncertainty is 48.9 × 10−9 rad, indicating a sensitivity of 4.89 × 10−9 rad/Hz1/2 per 0.01 s measurement duration. This study presents a novel approach for measuring small optical rotation angles with unprecedentedly low uncertainty and high sensitivity, potentially playing a pivotal role in advancing all-optical atomic magnetometers and magneto-optical effect research.

show abstract

A nanosecond-resolved atomic hydrogen magnetometer

Abstract: We introduce a novel and sensitive ns-resolved atomic magnetometer, which is at least three orders of magnitude faster than conventional magnetometers. We use the magnetic field dependence of the hyperfine...

Cited by 3 publications

References 27 publications

Magnetometry with spin polarized Hydrogen from molecular photo-dissociation

Magnetometry with spin polarized Hydrogen from molecular photo-dissociation

Interspecies spin-noise correlations in hot atomic vapors

Ultra-sensitive measurement of small optical rotation angles using quantum entanglement based on a quasi-Wollaston prism beam splitter

Contact Info

Product

Resources

About