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Crossed two-layer coplanar-waveguide circuit for extending spin dephasing time T2* of ensemble NV centers in a bulk diamond
https://repo.qst.go.jp/records/82157
https://repo.qst.go.jp/records/821572b3363d8-e4dc-479d-b6ca-71d17fda02f2
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-03-15 | |||||
| タイトル | ||||||
| タイトル | Crossed two-layer coplanar-waveguide circuit for extending spin dephasing time T2* of ensemble NV centers in a bulk diamond | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Kamitsubo, Y.
× Kamitsubo, Y.× Sekiguchi, T.× Yuta, Masuyama× Taniguchi, T.× MIyakawa, M.× Shinei, C.× Shinobu, Onoda× Seiichi, Saiki× Shuya, Ishii× Teraji, T.× Takeshi, Ohshima× Iwasaki, T.× Hatano, M.× Yuta, Masuyama× Shinobu, Onoda× Seiichi, Saiki× Shuya, Ishii× Takeshi, Ohshima |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The nitrogen-vacancy (NV) center in diamond is extensively studied for a next-generation high-sensitivity magnetometer. The DC magnetic sensitivity can be improved by extending the inhomogeneous spin dephasing time through suppressing the effects of inhomogeneous fluctuations or by increasing the number of effective NV centers through expanding the sensor volume. It has been demonstrated that strain-induced dephasing can be suppressed by double quantum (DQ) technique with two-tone microwaves (MW), and spin bath-induced dephasing can be suppressed by spin bath drive (SBD) technique with multi-tone radio-frequency (RF) to drive the P1 centers. To combine these T2* -extension techniques with a bulk diamond, it is necessary to apply MW and RF uniformly to the sample. A coplanar waveguide (CPW) circuit has been reported to be useful for uniform microwave irradiation to a bulk sample. In this study, we reports the newly designed and fabricated a cross-aligned two-layer CPW circuit. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 3rd IFQMS | |||||
| 発表年月日 | ||||||
| 日付 | 2020-12-17 | |||||
| 日付タイプ | Issued | |||||
