Dead‐Zone‐Free NMOR Atomic Magnetometer Based on Excitation of Dual‐Axis Magnetic Pulse
Rattachement africain : cn. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Abstract Nonlinear magneto‐optical rotation (NMOR) atomic magnetometer has extreme precision and sensitivity. However, atomic magnetometer suffers from the problem of dead zone that the sensitive signal decays to zero if the magnetic field is along some specific directions relative to the sensor. In this paper, a new scheme based on excitation of dual‐axis magnetic pulse is presented to eliminate the dead zone of NMOR atomic magnetometer. The magnetic field measurement is based on the mode of free induction decay (FID), which allows pumping and detecting stages to be separated without interference from magnetic pulse. The dead zone model is developed for NMOR atomic magnetometer from the mechanism of interaction between optical field and polarized atoms. To eliminate the dead zone of NMOR atomic magnetometer, the response model with dual‐axis magnetic pulse excitation is established by using the density matrix theory for bias magnetic field in arbitrary direction. Then the proposed method of suppressing the dead zone is examined in the experiment, which is in agreement with the developed model. The results show that the method can effectively eliminate the dead zone of NMOR atomic magnetometer, which is of great significance to measurement of magnetic field in complex magnetic environment with variable direction.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Dead‐Zone‐Free NMOR Atomic Magnetometer Based on Excitation of Dual‐Axis Magnetic Pulse
- Date Crossref
- 17/01/2025
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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High Magnetic Field Laboratory pays non établi dans la noticeStructure de recherche
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Beihang University Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology pays non établi dans la noticeUniversité ou école supérieure
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National Institute of Extremely‐Weak Magnetic Field Infrastructure Hangzhou 310051 China pays non établi dans la noticeStructure de recherche
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National Institute of Extremely-Weak Magnetic Field Infrastructure pays non établi dans la noticeStructure de recherche
High Magnetic Field Laboratory, Key Laboratory of Ultra-Weak Magnetic Field Measurement Technology — Beihang University et National Institute of Extremely‐Weak Magnetic Field Infrastructure Hangzhou 310051 China, avec 1 autre affiliation.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.