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Improving the electron spin properties of nitrogen-vacancy centres in nanodiamonds by near-field etching
https://repo.qst.go.jp/records/49397
https://repo.qst.go.jp/records/49397bb52d8dc-ca54-4f11-9a8a-98b38d066ff5
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-09-13 | |||||
| タイトル | ||||||
| タイトル | Improving the electron spin properties of nitrogen-vacancy centres in nanodiamonds by near-field etching | |||||
| 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 |
Brandenburg, Felix
× Brandenburg, Felix× Nagumo, Ryosuke× Saichi, Kota× Tahara, Kosuke× Iwasaki, Takayuki× Hatano, Mutsuko× Jelezko, Fedor× Igarashi , Ryuji× Yatsui, Takashi× Igarashi, Ryuji |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The nitrogen-vacancy (NV) centre in diamond is a promising candidate for quantum computing applications and magnetic sensing applications, because it is an atomic-scale defect with stable coherence time (T2) and reliable accessibility at room temperature. We demonstrated a method for improving the NV spin properties (the full width half maximum (FWHM) value of the magnetic resonance spectrum and T2) through a near-field (NF) etching method under ambient conditions. The near-field etching method, based on a He-Cd ultraviolet laser (325 nm), which is longer than the absorption edge of the oxygen molecule, enabled selective removal of defects on the nanodiamond surface. We observed a decrease in the FWHM value close to 15% and an increase in T2 close to 25%. Since our technique can be easily reproduced, a wide range of NV centre applications could be improved, especially magnetic sensing applications. Our results are especially attractive, because they have been obtained under ambient conditions and only require a light source with wavelength slightly above the O2 absorption edge. | |||||
| 書誌情報 |
Scientific Reports 巻 8, 号 1, 発行日 2018-10 |
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| 出版者 | ||||||
| 出版者 | Nature Publishing Group | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2045-2322 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1038/s41598-018-34158-4 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.nature.com/articles/s41598-018-34158-4 | |||||
