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Phys Rev Lett. 2005 Apr 1;94(12):123001. Epub 2005 Mar 29.

NMR detection with an atomic magnetometer.

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Department of Physics, Princeton University, Princeton, New Jersey 08544, USA.


We demonstrate detection of NMR signals using a noncryogenic atomic magnetometer and describe several novel applications of this technique. A nuclear spin-precession signal from water is detected using a spin-exchange-relaxation-free potassium magnetometer. We also demonstrate detection of less than 10(13) 129Xe atoms whose NMR signal is enhanced by a factor of 540 due to Fermi-contact interaction with K atoms. The possibility of using a multichannel atomic magnetometer for fast 3D magnetic resonance imaging is also discussed.

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