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Highly sensitive diamond quantum sensor with large sensor volume toward magnetoencephalography
https://repo.qst.go.jp/records/78265
https://repo.qst.go.jp/records/7826548d2cf31-acfa-4cb0-8f75-f2549d36da6b
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-12-27 | |||||
| タイトル | ||||||
| タイトル | Highly sensitive diamond quantum sensor with large sensor volume toward magnetoencephalography | |||||
| 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 |
増山, 雄太
× 増山, 雄太× IWASAKI, Takayuki× 波多野, 睦子× 大島, 武× Masuyama, Yuta× Hatano, Mutsuko× Ohshima, Takeshi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Nitrogen-vacancy (NV) color centers in diamond are promising solid-state quantum sensors working at room temperature. The number of NV centers limits the magnetic sensitivity of the quantum magnetometer. Increasing the number of NV centers is a challenging task due to technical issues such as microwave power density, detection noise. Here, we developed the sensor system with a large detection volume which contains a lot of NV centers. The microwave circuit enhances microwave power density. Digital filter with frequency modulation of microwave allows us to detect the magnetic field with low noise. Consequently, we obtained a DC magnetic field sensitivity of 980 pT/√Hz. This work was supported by MEXT Quantum Leap Flagship Program (MEXT Q-LEAP) Grant Number JPMXS0118067395. |
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| 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 | 第3回QST国際シンポジウムへの参加 | |||||
| 発表年月日 | ||||||
| 日付 | 2019-12-04 | |||||
| 日付タイプ | Issued | |||||
