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Improving Magnetic Sensitivity in Magnetometer with Nitrogen-Vacancy Center in a Bulk Diamond using Grating Coupler
https://repo.qst.go.jp/records/79554
https://repo.qst.go.jp/records/79554c5567eee-0f12-4d87-953c-5debab9ca78f
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-03-18 | |||||
| タイトル | ||||||
| タイトル | Improving Magnetic Sensitivity in Magnetometer with Nitrogen-Vacancy Center in a Bulk Diamond using Grating Coupler | |||||
| 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 |
Sato, Takumi
× Sato, Takumi× Kitaizumi, Takahiro× Saichi, Kota× Igarashi, Ryuji× Ohshima, Takeshi× Masuyama, Yuta× Iwasaki, Takayuki× Hatano, Mutsuko× Jelezko, Fedor× Kusakabe, Moriaki× Masaki Sekino× Yatsui, Takashi× Igarashi, Ryuji× Ohshima, Takeshi× Masuyama, Yuta× Hatano, Mutsuko |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Introduction Based on the magnetic sensing system to investigate tumor metastases using Hall sensor with permanent magnet, we are investigating into the improvement of magnetic sensitivity using Nitrogen-Vacancy (NV) center in a bulk diamond1). However, light extraction efficiency of diamond is low because of its high refractive index of diamond. To meet the requirement, we performed the numerical optimization using a FDTD method of the grating coupler over the diamond substrate. Method We performed the numerical optimization of the number and pitch of grating using a Finite Difference Time Domain (FDTD) method of the grating coupler over the diamond substrate. We compared the enhancement of the optical intensity with and without grating (FIG. 1). The increased rate represents the enhancement of electric field with grating with respect that without grating. |
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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 | The 2nd International Forum on Quantum Metrology and Sensing への出席 | |||||
| 発表年月日 | ||||||
| 日付 | 2019-12-17 | |||||
| 日付タイプ | Issued | |||||
