Magnetic Field Imaging with Nitrogen-Vacancy Ensembles
| Title: | Magnetic Field Imaging with Nitrogen-Vacancy Ensembles |
| Author: |
Pham, Linh My; Le Sage, David Anthony; Stanwix, Paul L.; Yeung, Tsun Kwan; Glenn, David R.; Trifonov, Alexei; Cappellaro, Paola; Hemmer, Philip; Lukin, Mikhail D.; Park, Hongkun; Yacoby, Amir; Walsworth, Ronald L.
Note: Order does not necessarily reflect citation order of authors. |
| Citation: | Pham, Linh M., David Le Sage, Paul L. Stanwix, Tsun K. Yeung, David R. Glenn, Alexei Trifonov, Paola Cappellaro, et al. 2011. Magnetic field imaging with nitrogen-vacancy ensembles. New Journal of Physics 13(4): 045021. |
| Full Text & Related Files: |
Pham_MagneticField.pdf (1.611Mb; PDF) 
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| Abstract: | We demonstrate a method of imaging spatially varying magnetic fields using a thin layer of nitrogen-vacancy (NV) centers at the surface of a diamond chip. Fluorescence emitted by the two-dimensional NV ensemble is detected by a CCD array, from which a vector magnetic field pattern is reconstructed. As a demonstration, ac current is passed through wires placed on the diamond chip surface, and the resulting ac magnetic field patterns are imaged using an echo-based technique with sub-micron resolution over a \(140 \mu m\) x \(140 \mu m\) field of view, giving single-pixel sensitivity \(\sim 100 nT / \sqrt{Hz}\). We discuss ongoing efforts to further improve the sensitivity, as well as potential bioimaging applications such as real-time imaging of activity in functional, cultured networks of neurons. |
| Published Version: | doi:10.1088/1367-2630/13/4/045021 |
| Other Sources: | http://walsworth.physics.harvard.edu/publications/2011_Pham_NJP.pdf |
| Terms of Use: | This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP |
| Citable link to this page: | http://nrs.harvard.edu/urn-3:HUL.InstRepos:9949242 |
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