期刊
EPJ QUANTUM TECHNOLOGY
卷 7, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1140/epjqt/s40507-020-00088-2
关键词
NV centers; Quantum sensing; Magnetic measurements
资金
- European Commision [828946]
- EMPIR [EMPIR-17FUN06, 17FUN01]
- Piemonte Quantum Enabling Technologies (PiQuET) by the Piemonte Region
- International Atomic Energy Agency (IAEA) [F11020]
- Departments of Excellence Project [L. 232/2016]
- MIUR
- National Collaborative Research Infrastructure Strategy (NCRIS) programme by the Australian Government-Department of Education, Skill and Employment
- University of Torino
- Compagnia di SanPaolo Foundation
We present an innovative experimental set-up that uses Nitrogen-Vacancy centres in diamonds to measure magnetic fields with the sensitivity of eta = 68 +/- 3 nT/root Hz at demonstrated (sub)cellular scale. The presented method of magnetic sensing, utilizing a lock-in based ODMR technique for the optical detection of microwave-driven spin resonances induced in NV centers, is characterized by the excellent magnetic sensitivity at such small scale and the full biocompatibility. The cellular scale is obtained using a NV-rich sensing layer of 15 nm thickness along z axis and a focused laser spot of (10x10) mu m(2) in x-y plane. The biocompatibility derives from an accurate choice of the applied optical power. For this regard, we also report how the magnetic sensitivity changes for different applied laser power and discuss the limits of the sensitivity sustainable with biosystem at such small volume scale. As such, this method offers a whole range of research possibilities for biosciences.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据