High sensitivity magnetic imaging using an array of spins in diamond.

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 60 x 60 microm(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.

[1]  J. Wrachtrup,et al.  Universal enhancement of the optical readout fidelity of single electron spins at nitrogen-vacancy c , 2009, 0909.2783.

[2]  Raymond G. Beausoleil,et al.  Diamonds with a high density of nitrogen-vacancy centers for magnetometry applications , 2009 .

[3]  L. Hollenberg,et al.  Sensing of fluctuating nanoscale magnetic fields using nitrogen-vacancy centers in diamond. , 2009, Physical review letters.

[4]  M. Markham,et al.  Ultralong spin coherence time in isotopically engineered diamond. , 2009, Nature materials.

[5]  D. Rugar,et al.  Nanoscale magnetic resonance imaging , 2009, Proceedings of the National Academy of Sciences.

[6]  Alfred Leitenstorfer,et al.  Nanoscale imaging magnetometry with diamond spins under ambient conditions , 2008, Nature.

[7]  Jacob M. Taylor,et al.  Nanoscale magnetic sensing with an individual electronic spin in diamond , 2008, Nature.

[8]  Jacob M. Taylor,et al.  High-sensitivity diamond magnetometer with nanoscale resolution , 2008, 0805.1367.

[9]  C. Degen,et al.  Scanning magnetic field microscope with a diamond single-spin sensor , 2008, 0805.1215.

[10]  D Budker,et al.  Zero-field remote detection of NMR with a microfabricated atomic magnetometer , 2008, Proceedings of the National Academy of Sciences.

[11]  Dmitry Budker,et al.  Magnetic resonance imaging with an optical atomic magnetometer , 2006, Proceedings of the National Academy of Sciences.

[12]  B. Chui,et al.  Single spin detection by magnetic resonance force microscopy , 2004, Nature.

[13]  Robert McDermott,et al.  Microtesla MRI with a superconducting quantum interference device. , 2004, Proceedings of the National Academy of Sciences of the United States of America.

[14]  C. Flask.  Object-Oriented Magnetic: Resonance Classes and Objects, Calculations and Computations , 2002 .

[15]  M. Mehring,et al.  Object-Oriented Magnetic Resonance: Classes and Objects, Calculations and Computations , 2001 .

[16]  J. Wrachtrup,et al.  Scanning confocal optical microscopy and magnetic resonance on single defect centers , 1997 .