2023 Fiscal Year Final Research Report
Vector potential modulation of optical-pumped spin-polarized atoms
| Project/Area Number |
21K04089
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 21030:Measurement engineering-related
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| Research Institution | Iwate University |
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Principal Investigator |
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | ベクトルポテンシャル / 光ポンピング / 原子磁力計 / ベクトルポテンシャルコイル |
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| Outline of Final Research Achievements |
Here is the translation:
We aimed to realize a vector potential measuring device by incorporating a vector potential coil with a double-nested winding structure into an atomic magnetometer. Initially, we designed a Helmholtz-type coil capable of generating both a uniform vector potential and a magnetic field through numerical simulations. By comparing the AC frequency characteristics when either a magnetic field or a vector potential was applied to the atomic magnetometer, we found that the magnetic field response decreased with increasing frequency, whereas the vector potential response exhibited the opposite behavior, showing completely different frequency responses. From this, we demonstrated for the first time that an atomic magnetometer can measure AC vector potential distinctively from the magnetic field.
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| Free Research Field |
計測
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| Academic Significance and Societal Importance of the Research Achievements |
ベクトルポテンシャルは、その存在が理論的にも実験的にも認識されているにもかかわらず、それを直接測定するセンサーは無かった。我々は、ベクトルポテンシャルを発生するコイルと、スピン偏極した原子を制御する両方の技術を組み合わせることによって、新しいセンサーの実現を目指した。今回、磁場とは全く異なる応答を測定できたので、センサーを実現するために必要な基盤技術を見出したといえるだろう。この技術は、新しい医療機器などへの応用が可能になると期待される。
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