【摘要】：微波誘導光學核極化(Microwave-Induced Optical Nuclear Polarization,MIONP)技術(shù)利用光激發(fā)三重態(tài)樣品來極化電子,再用微波將處于非熱平衡態(tài)的電子極化轉(zhuǎn)移到待檢測原子核,將原子核的檢測靈敏度提高幾個量級甚至更多.這種靈敏度極化增強方法可以用來進行蛋白質(zhì)結(jié)構(gòu)和動力學檢測、光化學和光物理進程的基礎研究、量子計算和低場核磁共振(Low-field Nuclear Magnetic Resonance,Low-field NMR)與磁共振成像(Magnetic Resonance Imaging,MRI)應用研究.該文簡要分析了MIONP的物理原理及其在核極化增強中的優(yōu)勢,結(jié)合實驗條件綜述了一些重要的成果.最后,對微波誘導光學核極化的前景作了展望.
[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.
【作者單位】： 波譜與原子分子物理國家重點實驗室武漢磁共振中心(中國科學院武漢物理與數(shù)學研究所);中國科學院大學;
【基金】：國家自然科學基金資助項目(11575287)
【分類號】：O482.532

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