An Integrated High-Sensitivity VCSEL-Based Spin-Exchange Relaxation-Free Magnetometer With Optical Rotation Detection

Zhang, Guiying; Zeng, Hongjian; Tan, Gaobo; Lin, Qiang

doi:10.1109/jsen.2022.3156814

Cited by 17 publications

(6 citation statements)

References 35 publications

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“…In 2022, Guiying Zhang et al integrated a miniaturized atomic magnetometer using a VCSEL as the light source. The experiment used a single beam scheme, but the incident beam was changed from circularly polarized to elliptically polarized [ 117 ]. The circularly polarized component of elliptically polarized light is used for optical pumping, and the linearly polarized component is used for spin detection, which in turn suppresses magnetometer noise.…”

Section: Application Of Vcsel In a Chip-scale Atomic Magnetometermentioning

confidence: 99%

Application of VCSEL in Bio-Sensing Atomic Magnetometers

et al. 2022

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Recent years have seen rapid development of chip-scale atomic devices due to their great potential in the field of biomedical imaging, namely chip-scale atomic magnetometers that enable high resolution magnetocardiography (MCG) and magnetoencephalography (MEG). For atomic devices of this kind, vertical cavity surface emitting lasers (VCSELs) have become the most crucial components as integrated pumping sources, which are attracting growing interest. In this paper, the application of VCSELs in chip-scale atomic devices are reviewed, where VCSELs are integrated in various atomic bio-sensing devices with different operating environments. Secondly, the mode and polarization control of VCSELs in the specific applications are reviewed with their pros and cons discussed. In addition, various packaging of VCSEL based on different atomic devices in pursuit of miniaturization and precision measurement are reviewed and discussed. Finally, the VCSEL-based chip-scale atomic magnetometers utilized for cardiac and brain magnetometry are reviewed in detail. Nowadays, biosensors with chip integration, low power consumption, and high sensitivity are undergoing rapid industrialization, due to the growing market of medical instrumentation and portable health monitoring. It is promising that VCSEL-integrated chip-scale atomic biosensors as featured applications of this kind may experience extensive development in the near future.

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Section: Application Of Vcsel In a Chip-scale Atomic Magnetometermentioning

confidence: 99%

Application of VCSEL in Bio-Sensing Atomic Magnetometers

et al. 2022

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“…In 2022, Zhang et al proposed a simple optical method to solve complex electronic control problems, which realized a VCSEL integrated SERF magnetometer and measured the cardiac magnetic field signal. This work provides a new way to develop the VCSEL integrated SERF magnetometer and apply it to magnetoencephalography (MEG) [90].…”

Section: Biomedicinementioning

confidence: 99%

Progress and applications of quantum precision measurement based on SERF effect

Zhai

Yue²,

Li³

et al. 2022

Front. Phys.

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With the development of quantum precision measurement technology, measurement methods based on magnetic, optical and atomic interactions have started to receive widespread attention. Among them, quantum precision measurement based on the spin-exchange relaxation-free (SERF) effect shows great potential by its ultra-high measurement sensitivity. This paper introduces the basic operation principles of the magnetic field and inertia measurement based on the SERF effect, and focuses on the research progress and applications of SERF quantum precision measurement in fundamental physics, inertial navigation and biomedicine. Finally, we propose a prospect for the directions of SERF quantum precision measurement.

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“…Ultrasensitive atomic sensors based on the Spin-Exchange Relaxation-Free (SERF) effect, such as atomic gyroscopes [1] and magnetometers [2], have been widely used in fundamental physics research as well as in medicine and biomedicine [3] due to their high-resolution measurement characteristics. An extremely weak magnetic field environment is a prerequisite for the highly sensitive performance of the SERF state atom sensor [4].…”

Section: Introductionmentioning

confidence: 99%

Study on the magnetic shielding properties of nanocrystalline strips under bending stress

Yuan,

Xu,

Wang

et al. 2024

Phys. Scr.

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The study of the magnetic properties of nanocrystalline materials under stress is of great significance for the construction of small and lightweight magnetic shielding rooms. Therefore, this paper investigates the effect of stress on the magnetic properties of nanocrystalline materials under the action of external bending stress. By comparing the test results of the soft magnetic measuring device with and without bending stress, it is found that the magnetic permeability (μi) decreases by about 51.41% when the introduced bending stress σ is increased by about 5.96"×" 107 pa, whereas the "K" _"u" ^"Fe-Si" (induced magnetic anisotropy constant) and "H" _"k" (field of magnetic anisotropy) increase by 5.30"×" 102 J/m3and 1.08"×" 102 A/m, respectively. The Jiles-Atherton (J-A) model considering the bending stress and radius of change correlation is established, and the typical parameters of the J-A model are fitted using the Gazelle Optimization Algorithm (GOA), and the RMSE (root mean square error) of all of them are less than 0.056 T. The magnetic domain density increased with the increase of bending stress, which verified the correlation between the J-A model parameters and the bending stress. Our results reveal that the nanocrystalline macroscopic and micromechanical magnetic properties can be effectively combined with the J-A model, which will provide a theoretical basis for the simulation study of the nanocrystalline magnetic shielding device in the actual stress situation.

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An Integrated High-Sensitivity VCSEL-Based Spin-Exchange Relaxation-Free Magnetometer With Optical Rotation Detection

Cited by 17 publications

References 35 publications

Application of VCSEL in Bio-Sensing Atomic Magnetometers

Application of VCSEL in Bio-Sensing Atomic Magnetometers

Progress and applications of quantum precision measurement based on SERF effect

Study on the magnetic shielding properties of nanocrystalline strips under bending stress

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