摘要
设计了一种面向金刚石中氮空位(NV)电子自旋调控的紧凑Ω形印制电路板(PCB)表面贴装微波辐射结构,通过计算PCB上2.87 GHz微波的1/2波长长度限制整体结构尺寸,完成设计后加工,并进行测试表征。制备的微波辐射结构尺寸为20 mm×29 mm×0.16 mm,辐射强度高,能够方便地在金刚石附近放置射频线圈等部件进行核自旋调控。在测量过程中,不同磁场下的光探测磁共振谱表明,在2.7~2.87 GHz的范围内,光探测磁共振(ODMR)谱均具有很好的信噪比和对比度。使用Rabi信号表征了辐射结构的微波辐射能力,测量得到的Rabi频率可达3.5 MHz。最后在两个不同的磁场条件下,测量了金刚石样品的自旋回波信号。实验测试结果表明,设计的PCB上紧凑Ω形微波辐射结构具有很好的电子自旋操控能力,可为核自旋调控部件提供安装空间,能很好地应用在基于固态电子自旋的精密测量中。
A compactΩ-shape microwave radiation structure printed on printed circuit board(PCB)surface for manipulating nitrogen vacancy(NV)electron spin in diamond was designed.The overall structure size was limited by calculating 1/2 wavelength of microwave in PCB at 2.87 GHz,and then fabrication and test were completed.The fabricated microwave radiation structure has a size of 20 mm×29 mm×0.16 mm and high radiation intensity,and can easily place RF coils and other components near diamond for nuclear spin control.In the measurement process,the optical detection magnetic resonance(ODMR)spectra under different magnetic fields show that the resonance spectra have good signal-to-noise ratio and contrast from 2.7 GHz to 2.87 GHz.The Rabi signal was used to characterize the microwave radiation ability of the radiation structure.The measured Rabi frequency can reach 3.5 MHz.Finally,spin echo signals of the diamond sample were measured under two different magnetic fields.The experimental measurement results show that the designed compactΩ-shape microwave radiation structure on the PCB has good electron spin manipulation capability,can provide installation space for the nuclear spin control components,and can be well applied to the precision measurement based on solid-state electron spin.
作者
高研杰
郭浩
唐军
Gao Yanjie;Guo Hao;Tang Jun(Key Laboratory of Instrumentation Science&Dynamic Measurement of Ministry of Education,School of Instrument and Electronics,North University of China,Taiyuan 030051,China)
出处
《微纳电子技术》
CAS
北大核心
2023年第5期690-697,共8页
Micronanoelectronic Technology
基金
国家自然科学基金(51922009,62175219)
山西“1331项目”重点学科建设项目。
关键词
金刚石
氮空位(NV)色心
量子态操控
光探测磁共振(ODMR)
微波辐射结构
diamond
nitrogen vacancy(NV)center
quantum state manipulation
optical detection magnetic resonance(ODMR)
microwave radiation structure
