Nanoscale Fourier-Transform Magnetic Resonance Imaging

作者：Nichol John M; Naibert Tyler R; Hemesath Eric R; Lauhon Lincoln J; Budakian Raffi^*

来源：Physical Review X, 2013, 3(3): 031016.

DOI：10.1103/PhysRevX.3.031016

We report a method for nanometer-scale pulsed nuclear magnetic resonance imaging and spectroscopy. Periodic radio-frequency 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 H-1 spins in a polystyrene sample. We obtain a two-dimensional projection of the sample proton density with approximately 10-nm resolution.

• 出版日期2013-9-26
• 单位西北大学