Investigation and Application of Pulse Shaping to High-Frequency Electron Paramagnetic Resonance (EPR) / Zero-field Optically Detected Magnetic Resonance (ODMR) Spectroscopy

在化学/化学测量成像和物理/量子信息科学项目的支持下，南加州大学的高桥教授及其团队正在改进磁共振光谱技术-表征化学系统结构和运动/变化（动力学）的重要工具。 他们正在努力提高我们对物质能量状态的理解和控制，以提高探测化学系统的灵敏度和细节水平。 高桥教授还在开发计划，培养研究生和本科生的量子信息科学，磁共振光谱学和纳米技术的原则。 该团队为南洛杉矶社区的高中和小学学生加强科学、技术、工程和数学（STEM）教育项目。脉冲电子顺磁共振（EPR）光谱可以提供有关分子结构和动力学的详细信息。与核磁共振光谱一样，脉冲EPR光谱在高磁场和高频率下变得更强大。脉冲EPR的光谱分辨率、自旋极化、灵敏度和时间分辨率都随磁场和相应的拉莫尔旋进频率的增加而增加。然而，由于技术挑战，高场/频率脉冲EPR的测量科学尚未被探索。高桥教授在该项目中，利用高速任意波形发生器（AWG），对量子控制的改善、AWG驱动的脉冲EPR在高场、高频率下的测量科学和应用进行了研究。该奖项反映了NSF的法定使命，通过基金会的智力价值和更广泛的影响审查标准进行了评估，被认为值得支持。

With support from the Chemistry/Chemical Measurement & Imaging and Physics/Quantum Information Sciences programs, Professor Takahashi and his group at the University of Southern California are improving magnetic resonance spectroscopic techniques - important tools for characterizing the structure and motions/changes (dynamics) of chemical systems. They are working to improve our understanding and control of the energy states of matter in order to enhance the sensitivity and level of detail with which chemical systems can be probed. Professor Takahashi is also developing programs to train graduate and undergraduate students in the principles of quantum information science, magnetic resonance spectrometry, and nanotechnology. The team enhances programs of science, technology, engineering and math (STEM) education for high school and elementary school students in the South Los Angeles community.Pulsed electron paramagnetic resonance (EPR) spectroscopy can provide detailed information about molecular structure and dynamics. Like nuclear magnetic resonance spectroscopy, pulsed EPR spectroscopy becomes more powerful at high magnetic fields and frequencies. The spectral resolution, spin polarization, sensitivity, and time resolution of pulsed EPR all increase with increasing magnetic field and the associated Larmor precession frequency. However, the measurement science of high field/frequency pulsed EPR has yet to be explored due to technological challenges. In this project, Professor Takahashi is utilizing a high-speed arbitrary waveform generator (AWG) for improvement of quantum control and investigation of the measurement science and applications of AWG-driven pulsed EPR at high fields and frequencies.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.