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arXiv · 1302.2977

Nanoscale Fourier-transform MRI

John M. Nichol·Tyler R. Naibert·Eric R. Hemesath·Lincoln J. Lauhon·Raffi Budakian
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Abstract

We report a method for nanometer-scale pulsed nuclear magnetic resonance imaging and spectroscopy. Periodic radiofrequency pulses are used to create temporal correlations in the statistical polarization of a solid organic sample. The spin density is spatially encoded by applying a series of intense magnetic field gradient pulses generated by focusing electric current through a nanometer-scale metal constriction. We demonstrate this technique using a silicon nanowire mechanical oscillator as a magnetic resonance sensor to image 1H spins in a polystyrene sample. We obtain a two-dimensional projection of the sample proton density with approximately 10-nm resolution.

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John M. Nichol, Tyler R. Naibert, Eric R. Hemesath, Lincoln J. Lauhon, Raffi Budakian. 2013-02-13. Nanoscale Fourier-transform MRI. https://arxiv.org/abs/1302.2977

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