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High-Resolution Nanoscale Solid-State Nuclear Magnetic Resonance Spectroscopy

机译:高分辨率纳米级固态核磁共振光谱

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We present a new method for high-resolution nanoscale magnetic resonance imaging (nano-MRI) that combines the high spin sensitivity of nanowire-based magnetic resonance detection with high-spectral-resolution nuclear magnetic resonance (NMR) spectroscopy. Using a new method that incorporates average Hamiltonian theory into optimal control pulse engineering, we demonstrate NMR pulses that achieve high-fidelity quantum control of nuclear spins in nanometer-scale ensembles. We apply this capability to perform dynamical decoupling experiments that achieve a factor of 500 reduction of the proton-spin resonance linewidth in a ( 50 ? nm ) 3 volume of polystyrene. We make use of the enhanced spin coherence times to perform Fourier-transform imaging of proton spins with a one-dimensional slice thickness below 2?nm.
机译:我们为高分辨率纳米级磁共振成像(NANO-MRI)提供了一种新的方法,该成像与高光谱分辨率核磁共振(NMR)光谱相结合了纳米线的磁共振检测的高自旋灵敏度。利用将平均汉密尔顿理论的新方法融入最优控制脉冲工程,我们展示了纳米级合奏中实现高保真量子控制的NMR脉冲。我们应用这种能力来进行动态去耦实验,该实验达到500系列的质子旋转共振线宽,在3体积的聚苯乙烯中的聚苯乙烯中的质子 - 旋转共振线。我们利用增强的旋转相干时间来执行质子旋转的傅立叶变换成像,一维切片厚度低于2≤nm。

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