Prospects for nuclear spin hyperpolarization of molecular samples using nitrogen-vacancy centers in diamond
نویسندگان
چکیده
After initial proof-of-principle demonstrations, optically pumped nitrogen-vacancy (NV) centres in diamond have been proposed as a non-invasive platform to achieve hyperpolarisation of nuclear spins molecular samples over macroscopic volumes and enhance the sensitivity magnetic resonance (NMR) experiments. In this work, we model process polarisation external by NV theoretically evaluate their performance range scenarios. We find that average spin polarisations exceeding 10% can principle be generated sample ($\gtrsim\mu$L) with careful engineering system's geometry maximise diamond-sample contact area. The fabrication requirements other practical challenges are discussed. then explore possibility exploiting local enhancements nano/micro-NMR experiments based on centres. For micro-NMR, modest signal thermal (by 1-2 orders magnitude) essence achieved existing technology, larger achievable via micro-structuring sample/substrate interface. However, there is generally no benefit for nano-NMR where detection statistical provides largest signal-to-noise ratio. This work will guide future experimental efforts integrate NV-based NMR systems.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.103.014434