Magnetic field imaging with nitrogen-vacancy ensembles
Name
Cappellaro_Magnetic Field.pdf
Size
1.54 MB
Format
Adobe PDF
Checksum (MD5)
4236746ee6bc2e0840a718843648cc9e
Author(s)
Pham, L. M.
Le Sage, David
Stanwix, P. L.
Yeung, T. K.
Glenn, David
Trifonov, A.
Cappellaro, Paola
Hemmer, P. R.
Lukin, M. D.
Park, H.
Date Issued
April 2011
Journal
New Journal of Physics
Publisher
Institute of Physics
Citation
Pham, L M et al. “Magnetic field imaging with nitrogen-vacancy ensembles.” New Journal of Physics 13 (2011): 045021.
Version
Final published version
Abstract
Part of Focus on Diamond-Based Photonics and Spintronics
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 μm×140 μm field of view, giving single-pixel sensitivity \sim100\,{\rm nT}/\sqrt{{\rm 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.
PACS
61.72.J- Point defects and defect clusters
78.55.Hx Other solid inorganic materials
87.50.C- Static and low-frequency electric and magnetic fields effects
85.30.Tv Field effect devices
Subjects
Electronics and devices
Condensed matter: electrical, magnetic and optical
Semiconductors
Medical physics
Biological physics
Condensed matter: structural, mechanical & thermal
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike 3.0
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1088/1367-2630/13/4/045021
