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Enhancing fluorescence excitation and collection from the nitrogen-vacancy center in diamond through a micro-concave mirror
https://repo.qst.go.jp/records/49308
https://repo.qst.go.jp/records/4930880e31362-85b1-4812-822c-cda05ba34941
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-02-18 | |||||
| タイトル | ||||||
| タイトル | Enhancing fluorescence excitation and collection from the nitrogen-vacancy center in diamond through a micro-concave mirror | |||||
| 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 |
Duan, Dewen
× Duan, Dewen× Vinaya, Kumar Kavatamane× Sri, Ranjini Arumugam× Ganesh, Rahane× Yan-Kai, Tzeng× Huan-Cheng, Chang× Hitoshi, Sumiya× Onoda, Shinobu× Junichi, Isoya× Gopalakrishnan, Balasubramanian× 小野田 忍 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We experimentally demonstrate a simple and robust optical fiber based method to achieve simultaneously efficient excitation and fluorescence collection from Nitrogen-Vacancy (NV) defects containing micro-crystalline diamond. We fabricate a suitable micro-concave mirror that focuses scattered excitation laser light into the diamond located at the focal point of the mirror. At the same instance, the mirror also couples the fluorescence light exiting out of the diamond crystal in the opposite direction of the optical fiber back into the optical fiber within its light acceptance cone. This part of fluorescence would have been otherwise lost from reaching the detector. Our proof-of-principle demonstration achieves a 25 times improvement in fluorescence collection compared to the case of not using any mirrors. The increase in light collection favors getting high signal-to-noise ratio optically detected magnetic resonance signals and hence offers a practical advantage in fiber-based NV quantum sensors. Additionally, we compacted the NV sensor system by replacing some bulky optical elements in the optical path with a 1 × 2 fiber optical coupler in our optical system. This reduces the complexity of the system and provides portability and robustness needed for applications like magnetic endoscopy and remote-magnetic sensing. | |||||
| 書誌情報 |
Applied Physics Letters 巻 113, 号 4, p. 041107, 発行日 2018-07 |
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| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/1.5037807 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1063/1.5037807 | |||||
| 関連名称 | https://doi.org/10.1063/1.5037807 | |||||
