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Gradiometer Using Separated Diamond Quantum Magnetometers
https://repo.qst.go.jp/records/81921
https://repo.qst.go.jp/records/81921dd06f3f3-2315-47eb-871e-503427710095
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-02-04 | |||||
| タイトル | ||||||
| タイトル | Gradiometer Using Separated Diamond Quantum Magnetometers | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Yuta, Masuyama
× Yuta, Masuyama× Suzuki, Katsumi× Hekizono, Akira× Iwanami, Mitsuyasu× Mutsuko, Hatano× Iwasaki, Takayuki× Takeshi, Ohshima× Yuta, Masuyama× Mutsuko, Hatano× Takeshi, Ohshima |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The negatively charged nitrogen-vacancy (NV) center in diamonds is known as the spin defect and using its electron spin, magnetometry can be realized even at room temperature with extremely high sensitivity as well as a high dynamic range. However, a magnetically shielded enclosure is usually required to sense weak magnetic fields because environmental magnetic field noises can disturb high sensitivity measurements. Here, we fabricated a gradiometer with variable sensor length that works at room temperature using a pair of diamond samples containing negatively charged NV centers. Each diamond is attached to an optical fiber to enable free sensor placement. Without any magnetically shielding, our gradiometer realizes a magnetic noise spectrum comparable to that of a three-layer magnetically shielded enclosure, reducing the noises at the low-frequency range below 1 Hz as well as at the frequency of 50 Hz (power line frequency) and its harmonics. These results indicate the potential of highly sensitive magnetic sensing by the gradiometer using the NV center for applications in noisy environments such as outdoor and in vehicles. |
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| 書誌情報 |
Sensors 巻 21, 号 3, p. 977, 発行日 2021-02 |
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| 出版者 | ||||||
| 出版者 | MDPI | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1424-8220 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.3390/s21030977 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.mdpi.com/1424-8220/21/3/977 | |||||
