Towards a miniature atomic scalar magnetometer using a liquid crystal polarization rotator

Rutkowski, Jarosław; Fourcault, William; Bertrand, F.; Rossini, U.; Gétin, Stéphane; Calvez, S.; Herth, Étienne; Gorecki, Christophe; Prado, Matthieu Le; Léger, Jean‐Michel; Morales, Sophie

doi:10.1016/j.sna.2014.05.003

Cited by 22 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Helium magnetometers [34][35][36][37][38] are often used as secondary magnetometers for calibration of FGMs, which are susceptible to long-term drift. Typically V/SHMs have lower size, weight, and power (SWaP) requirements than FGMs.…”

Section: Cassinimentioning

confidence: 99%

Precision Magnetometers for Aerospace Applications

Bennett,

Vyhnalek,

Greenall

et al. 2021

Preprint

View full text Add to dashboard Cite

Aerospace technologies are crucial for modern civilization; space-based infrastructure underpins weather forecasting, communications, terrestrial navigation and logistics, planetary observations, solar monitoring, and other indispensable capabilities. Extraplanetary exploration -including orbital surveys and (more recently) roving, flying, or submersible unmanned vehicles -is also a key scientific and technological frontier, believed by many to be paramount to the long-term survival and prosperity of humanity. All of these aerospace applications require reliable control of the craft and the ability to record high-precision measurements of physical quantities. Magnetometers deliver on both of these aspects, and have been vital to the success of numerous missions. In this review paper, we provide an introduction to the relevant instruments and their applications. We consider past and present magnetometers, their proven aerospace applications, and emerging uses. We then look to the future, reviewing recent progress in magnetometer technology. We particularly focus on magnetometers that use optical readout, including atomic magnetometers, magnetometers based on quantum defects in diamond, and optomechanical magnetometers. These optical magnetometers offer a combination of field sensitivity, size, weight, and power consumption that allows them to reach performance regimes that are inaccessible with existing techniques. This promises to enable new applications in areas ranging from unmanned vehicles to navigation and exploration.

show abstract

Section: Cassinimentioning

confidence: 99%

Precision Magnetometers for Aerospace Applications

Bennett,

Vyhnalek,

Greenall

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…The cylindrical glassblown cells -with 1cm height and diameter -are filled to 20 Torrs of high purity helium. The optimal pressure is determined using a numerical model (Rutkowski et al, 2014). Compensation field and RF fields are applied using tri-axis square Helmholtz coils (outside dimensions 1.7 cm).…”

Section: Physical Principlementioning

confidence: 99%

Magnetocardiography measurements with⁴He vector optically pumped magnetometers at room temperature

et al. 2017

View full text Add to dashboard Cite

In this paper, we present a proof of concept study which demonstrates for the first time the possibility to record magnetocardiography (MCG) signals with 4 He vector optically-pumped magnetometers (OPM) operated in a gradiometer mode. Resulting from a compromise between sensitivity, size and operability in a clinical environment, the developed magnetometers are based on the parametric resonance of helium in zero magnetic field. Sensors are operated at room-temperature and provide a tri-axis vector measurement of the magnetic field. Measured sensitivity is around 210 fT/√Hz in the bandwidth [2 Hz; 300 Hz]. MCG signals from a phantom and two healthy subjects are successfully recorded. Human MCG data obtained with the OPMs are compared to reference electrocardiogram (ECG) recordings: similar heart rates, shapes of the main patterns of the cardiac cycle (P/T waves, QRS complex) and QRS widths are obtained with both techniques.

show abstract

“…Indeed, by Deep Reactive Ion Etching (DRIE) technology, the silicon substrate and III-V compound semiconductors can be etched fairly quickly and manufactured at low cost for mass production 6,7 . This plasma technology is becoming increasingly attractive in a very wide set of applications [8][9][10][11] as well as for microfluidic devices [12][13][14] , microprobes 15 , microlens molds [16][17][18] , roll bearing components 19 and micro-optic structures 20 .…”

Section: Introductionmentioning

confidence: 99%

Fast ultra-deep silicon cavities: Toward isotropically etched spherical silicon molds using an ICP-DRIE

Herth

Barański

Berlharet

et al. 2019

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

View full text Add to dashboard Cite

HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

show abstract

Towards a miniature atomic scalar magnetometer using a liquid crystal polarization rotator

Cited by 22 publications

References 9 publications

Precision Magnetometers for Aerospace Applications

Precision Magnetometers for Aerospace Applications

Magnetocardiography measurements with⁴He vector optically pumped magnetometers at room temperature

Fast ultra-deep silicon cavities: Toward isotropically etched spherical silicon molds using an ICP-DRIE

Contact Info

Product

Resources

About

Towards a miniature atomic scalar magnetometer using a liquid crystal polarization rotator

Cited by 22 publications

References 9 publications

Precision Magnetometers for Aerospace Applications

Precision Magnetometers for Aerospace Applications

Magnetocardiography measurements with4He vector optically pumped magnetometers at room temperature

Fast ultra-deep silicon cavities: Toward isotropically etched spherical silicon molds using an ICP-DRIE

Contact Info

Product

Resources

About

Magnetocardiography measurements with⁴He vector optically pumped magnetometers at room temperature