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IAS Invited: Measuring Nuclear Magnetism with Small Atomic Magnetometers

Dmitry Budker, University of California at Berkeley

(Session : Thursday from )

Abstract. Measuring nuclear magnetism is both a traditional area of application of atomic magnetometers dating back half a century to the early work of C. Cohen-Tannoudgi and co-workers and an active area of contemporary research. The talk will describe the work at Berkeley on magnetic-resonance imaging with remote detection employing a gradiometer based on nonlinear magneto-optical rotation with frequency-modulated light and paraffin-coated cm-sized Rb vapor cells. Utilization of mm-sized microfabricated vapor cells (manufactured at NIST, Boulder) and spin-exchange-relaxation-free (SERF) magnetometry allows extension to small samples and microfluidic techniques. Operation of the first microfluidic microchip with on-board atomic-magnetometer cell will be described. Finally, experimental results on scalar spin-spin (“J”) coupling at zero magnetic field as measured with microliter samples will be presented. This work is a collaboration between the groups lead by D. Budker (UCB Physics), Alexander Pines (UCB Chemistry), and John Kitching (NIST, Boulder). Up-to-date bibliography can be found at http://budker.berkeley.edu .