微波诱导光学核极化进展

发布时间：2018-09-19 05:53

【摘要】：微波诱导光学核极化(Microwave-Induced Optical Nuclear Polarization,MIONP)技术利用光激发三重态样品来极化电子,再用微波将处于非热平衡态的电子极化转移到待检测原子核,将原子核的检测灵敏度提高几个量级甚至更多.这种灵敏度极化增强方法可以用来进行蛋白质结构和动力学检测、光化学和光物理进程的基础研究、量子计算和低场核磁共振(Low-field Nuclear Magnetic Resonance,Low-field NMR)与磁共振成像(Magnetic Resonance Imaging,MRI)应用研究.该文简要分析了MIONP的物理原理及其在核极化增强中的优势,结合实验条件综述了一些重要的成果.最后,对微波诱导光学核极化的前景作了展望.
[Abstract]:Microwave-induced optical nuclear polarization (Microwave-Induced Optical Nuclear Polarization,MIONP) technique uses photo-excited triplet samples to polarize electrons and then transfer electrons in non-thermal equilibrium states to the nucleus to be detected by microwave. The detection sensitivity of nuclei is increased by several orders of magnitude or more. The sensitivity polarization enhancement method can be used for protein structure and kinetics detection, photochemistry and photophysical processes, quantum computation and applications of low field nuclear magnetic resonance (Low-field Nuclear Magnetic Resonance,Low-field NMR) and magnetic resonance imaging (Magnetic Resonance Imaging,MRI). In this paper, the physical principle of MIONP and its advantages in nuclear polarization enhancement are briefly analyzed, and some important achievements are summarized in combination with experimental conditions. Finally, the prospect of microwave induced optical nuclear polarization is prospected.
【作者单位】：波谱与原子分子物理国家重点实验室武汉磁共振中心(中国科学院武汉物理与数学研究所);中国科学院大学;
【基金】：国家自然科学基金资助项目(11575287)
【分类号】：O482.532

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