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Extending coherence time of macro-scale diamond magnetometer by dynamical decoupling with coplanar waveguide resonator
https://repo.qst.go.jp/records/49473
https://repo.qst.go.jp/records/4947382e8ac2c-6a05-4e1e-bdd1-11f19ed701c8
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-01-18 | |||||
| タイトル | ||||||
| タイトル | Extending coherence time of macro-scale diamond magnetometer by dynamical decoupling with coplanar waveguide resonator | |||||
| 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 |
Masuyama, Y.
× Masuyama, Y.× Mizuno, K.× Ozawa, H.× Ishiwata, H.× Hatano, Y.× Ohshima, Takeshi× Iwasaki, T.× Hatano, M.× 大島 武 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Ultimate sensitivity for quantum magnetometry using negatively charged nitrogen-vacancy (NV) centers in a diamond is limited by a number of NV centers and coherence time. Microwave irradiation with a high and homogeneous power density into a large detection volume is necessary to realize a highly sensitive magnetometer. In this study, we fabricate a microwave resonator to enhance the power density of the microwave field and an optical system. By the strong microwave field, 48 ns Rabi oscillation which is sufficiently faster than the phase relaxation time of NV centers is realized. In addition, combining with a decoupling pulse sequence (XY16), the spin coherence time (T2) extends to 27 times longer than that with a spin echo method. Consequently, we obtained an AC magnetic field sensitivity of 10.8 pt/ pHz using the dynamical decoupling pulse sequence. |
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| 書誌情報 |
Review of Scientific Instruments 巻 89, p. 125007, 発行日 2018-12 |
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| 出版者 | ||||||
| 出版者 | AIP publishing | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/1.5047078 | |||||
