Understanding the Magnetic Resonance Spectrum of Nitrogen Vacancy Centers in an Ensemble of Randomly Oriented Nanodiamonds
Understanding the Magnetic Resonance Spectrum of Nitrogen Vacancy Centers in an Ensemble of Randomly Oriented Nanodiamonds
复制标题
了解随机取向纳米金刚石集合中氮空位中心的磁共振谱
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
J. King
中科院分区：
文献类型：
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作者：
Keunhong Jeong;A. Parker;R. Page;A. Pines;C. Vassiliou;J. King
含氮空位(NV-)中心的纳米金刚石显示出许多新兴的应用前景，包括体内靶向成像和产生用于增强核磁共振光谱和成像的核自旋超极化。在这里，我们对具有随机晶体取向的纳米金刚石系综中NV中心的磁共振行为进行了详细的理解。二维光学探测磁共振光谱揭示了产生复杂光谱的能级、自旋布居和跃迁几率的分布。我们确定了对晶体取向不敏感的泛音转换，并给出了访问整个纳米钻石整体的定义明确的转换频率。这些跃迁可能被用于高分辨率成像和产生核自旋超极化。从零场到高场区域，包括最复杂的中间区域的数值模拟都很好地描述了数据。..。
Nanodiamonds containing nitrogen vacancy (NV–) centers show promise for a number of emerging applications including targeted in vivo imaging and generating nuclear spin hyperpolarization for enhanced NMR spectroscopy and imaging. Here we develop a detailed understanding of the magnetic resonance behavior of NV– centers in an ensemble of nanodiamonds with random crystal orientations. Two-dimensional optically detected magnetic resonance spectroscopy reveals the distribution of energy levels, spin populations, and transition probabilities that give rise to a complex spectrum. We identify overtone transitions that are inherently insensitive to crystal orientation and give well-defined transition frequencies that access the entire nanodiamond ensemble. These transitions may be harnessed for high-resolution imaging and generation of nuclear spin hyperpolarization. The data are well described by numerical simulations from the zero- to high-field regimes, including the intermediate regime of maximum complexity. ...
影响因子：
56.9
作者：
Staudacher, T.;Shi, F.;Wrachtrup, J.
通讯作者：
Wrachtrup, J.