MRI: Track 1 Development of a Combined Optical and Magnetic Resonance Spectroscopy System

该奖项由主要研究仪器（MRI）、化学研究仪器和化学测量与成像（CMI）项目联合支持。加州大学伯克利分校正在开发一种集核磁共振（NMR）、电子顺磁共振（EPR）和光学荧光光谱仪于一体的仪器，以支持Ashok Ajoy教授和同事Jeffery Reimer的研究。该仪器促进了材料科学、量子信息科学、能量存储和催化等领域的研究。该开发项目能够同时操纵蛋白质、材料和分子系统的电子和核自旋，利用在低温下从低磁场到高磁场或从高磁场到低磁场的快速运输样品的能力。通过结合三种光谱技术，该仪器使用户能够执行尖端的动态核极化（DNP）技术，这大大提高了磁共振实验的灵敏度，从而全面表征分子体系的性质。从本科生到博士后的学生和学员都参与了仪器的开发和测试。完成的仪器使广泛的研究小组和本科生受益，包括来自不同背景的学生和来自海湾地区以本科生为主的机构圣何塞州立大学。来自其他大学和劳伦斯伯克利国家实验室的多名研究人员也受益于此资源。该奖项旨在加强各级的研究和教育。该仪器使光学动态核极化（DNP）核磁共振系统的发展，以研究金属-有机框架。该仪器还用于光学探测电子，并通过自旋共振揭示其与核环境相互作用的作用，从而使分子系统的研究应用于量子信息科学。此外，该仪器还可以研究用于增强量子传感器的块体和纳米级材料的化学表面结构，并使用纳米金刚石中的核自旋作为量子传感器在微液滴内开发亚微米尺度的NMR原位化学探针。该仪器还具有独特的能力，可以同时探测EPR活性系统，并在光系统中进行光收集复合物的原位DNP测量。此外，通过使用三种模态，该仪器有助于理解电子g因子与块体或异质结构半导体中产生的光泵浦核磁共振谱之间的相互作用。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This award is jointly supported by the Major Research Instrumentation (MRI), the Chemistry Research Instrumentation, and Chemical Measurement and Imaging (CMI) programs. The University of California at Berkeley is developing an instrument which incorporates nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR) and an optical fluorescence spectrometer to support the research of Professor Ashok Ajoy along with colleague Jeffery Reimer. This instrument facilitates research in the areas of materials science, quantum information science, energy storage, and catalysis. This development project enables the simultaneous manipulation of electronic and nuclear spins of proteins, materials, and molecular systems employing the ability to rapidly transport the sample from low to high or high to low magnetic fields at cryogenic temperatures. By combining the three spectroscopic techniques, the instrument enables users to perform cutting-edge dynamic nuclear polarization (DNP) techniques which significantly improve the sensitivity of magnetic resonance experiments for the thorough characterization of the properties of molecular systems. Students and trainees from the undergraduate to postdoctoral level are involved in the development and testing of the instrument. The completed instrument benefits a wide array of research groups and undergraduate students, including those from diverse backgrounds and from a predominately undergraduate institution in the Bay Area, San Jose State University. Multiple investigators from additional universities and Lawrence Berkeley National Laboratory also benefit from this resource.This award is aimed at enhancing research and education at all levels. The instrument enables the development of an optical dynamic nuclear polarization (DNP) NMR system to study metal-organic frameworks. The instrumentation is also used to probe electrons optically and via spin resonance to uncover the role of interactions with their nuclear environment and thereby enable the study of molecular systems for applications in quantum information science. Additionally, the instrument enables the investigation of the chemical surface structure of bulk and nanoscale materials for enhanced quantum sensors and the development of a sub-micron scale NMR in-situ chemical probe within microdroplets using nuclear spin in nanodiamonds as quantum sensors. The instrument also allows the unique ability to simultaneously probe EPR active systems and perform in-situ DNP measurements of light-harvesting complexes within photosystems. Furthermore, by using the three modalities, this instrument aids in understanding the interplay between the electron g-factor and the resulting optically pumped NMR spectra in bulk or heterostructured semiconductors.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.