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

脉冲整形在高频电子顺磁共振 (EPR)/零场光检测磁共振 (ODMR) 光谱中的研究和应用

• 批准号: 2004252
• 负责人: Susumu Takahashi
• 金额: $ 47.5万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-01 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2004252&HistoricalAwards=false
• 关键词: Investigation; Application; Pulse; Shaping; Frequency

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.

在化学/化学测量与物理/量子信息科学计划的支持下，高桥教授及其南加州大学的小组正在改善磁共振光谱技术 - 表征化学系统的结构和运动/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，以增强可以探测化学系统的敏感性和细节水平。 高桥教授还正在制定培训毕业生和本科生的计划，以了解量子信息科学，磁共振光谱和纳米技术的原则。 该团队改善了南洛杉矶社区的高中和小学生科学，技术，工程和数学教育计划。型电子顺磁共振（EPR）光谱可以提供有关分子结构和动态的详细信息。像核磁共振光谱一样，在高磁场和频率下，脉冲EPR光谱变得更加强大。脉冲EPR的光谱分辨率，自旋极化，灵敏度和时间分辨率都随着磁场的增加和相关的Larmor进动频率而增加。但是，由于技术挑战，高场/频率脉冲EPR的测量科学尚未探索。在这个项目中，高桥教授正在利用高速任意波形生成器（AWG）来改善量子控制和调查测量科学的测量科学以及AWG驱动的脉冲EPR在高场和频率上的应用。该奖项反映了NSF的法定任务，反映了通过评估基金会和宽阔的基础的支持，并通过评估了基金会的范围。

项目成果

Demonstration of NV-detected C13 NMR at 4.2 T

• DOI: 10.1103/physrevb.108.045421
• 发表时间: 2023-03
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Yuhang Ren;Cooper Selco;Dylan Kawashiri;Michael Coumans;Benjamin Fortman;L. Bouchard;K. Holczer;Susumu Takahashi

Determination of local defect density in diamond by double electron-electron resonance

• DOI: 10.1103/physrevb.104.094307
• 发表时间: 2021-09-24
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Li, Shang;Zheng, Huijie;Budker, Dmitry
• 通讯作者: Budker, Dmitry

Probing NV and SiV charge state dynamics using high-voltage nanosecond pulse and photoluminescence spectral analysis

• DOI: 10.1088/2633-4356/acf750
• 发表时间: 2023-07
• 期刊: Materials for Quantum Technology
• 作者: Artur Pambukhchyan;Sizhe Weng;Indu Aravind;S. Cronin;Susumu Takahashi

Reduction of surface spin-induced electron spin relaxations in nanodiamonds

• DOI: 10.1063/5.0007599
• 发表时间: 2020-08
• 期刊: arXiv: Mesoscale and Nanoscale Physics
• 作者: Zaili Peng;Jax Dallas;Susumu Takahashi

Ultrahigh nitrogen-vacancy center concentration in diamond

• DOI: 10.1016/j.carbon.2021.12.032
• 发表时间: 2021-10
• 期刊: Carbon
• 影响因子: 10.9
• 作者: S. Kollarics;F. Simon;A. Bojtor;K. Koltai;G. Klujber;M. Szieberth;B. G. M'arkus;D. Beke;K. Kamar'as;Á. Gali;D. Amirari;R. Berry;S. Boucher;D. Gavryushkin;G. Jeschke;J. P. Cleveland;S. Takahashi;P. Szirmai;L. Forr'o;E. Emmanouilidou;R. Singh;K. Holczer