Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 81, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3385689
Keywords
CCD image sensors; diamond; magnetic field measurement; magnetic resonance imaging; magnetic sensors; magnetometers; nitrogen; sensor arrays; vacancies (crystal); vectors
Categories
Funding
- EU [DINAMO 245122]
- DFG [WR28/16-2]
- Landesstiftung BW (Internationale Spitzenforschung) [P-LSSPII/11]
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We present a solid state magnetic field imaging technique using a two-dimensional array of spins in diamond. The magnetic sensing spin array is made of nitrogen vacancy (NV) centers created at shallow depths. Their optical response is used for measuring external magnetic fields in close proximity. Optically detected magnetic resonance is read out from a 60x60 mu m(2) field of view in a multiplexed manner using a charge coupled device camera. We experimentally demonstrate full two-dimensional vector imaging of the magnetic field produced by a pair of current carrying microwires. The presented wide-field NV magnetometer offers, in addition to its high magnetic sensitivity and vector reconstruction, an unprecedented spatiotemporal resolution and functionality at room temperature.
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