Design of NV color center fluorescence signal acquisition circuit based on FPGA architecture  

作　　者：ZENG Sen YANG Shuqiang LIU Jingyan ZHAO Chuang SHANG Zhengguo HE Xianming 

机构地区：[1]Key Laboratory of Optoelectronic Technology and Systems,Ministry of Education of China,Chongqing University,Chongqing 400044,China [2]College of Physics and Electronics Information,Luoyang Normal University,Luoyang 471934,China [3]School of Electrical Engineering,Chongqing University of Science and Technology,Chongqing 401331,China

出　　处：《Optoelectronics Letters》2024年第12期721-727,共7页光电子快报（英文版）

基　　金：supported by the Chongqing Basic Science and Frontier Technology Research Project(No.cstc2017jcyjAX0237);the National 863 Program(No.2015AA042603)。

摘　　要：Nitrogen-vacancy(NV)quantum defects in diamond are sensitive detectors of magnetic fields.The rapid development of NV-center magnetic sensor has higher requirements for high-speed and high-precision data acquisition,weak signal detection and display.However,the existing sensing technologies based on diamond NV centers rely on bulky and expensive instruments,which must be replaced by a more compact design.Here we combine NV quantum sensing technology with integrated circuit technology to create a compact and easy-to-operate platform,which includes microwave source module,transistor-transistor logic(TTL)modulation module,digital lock-in amplifier(DLIA)module,etc.In order to confirm the reliability of the experimental platform,we not only tested the performance of each individual module,but also carried out optical detection magnetic resonance(ODMR)experiments.With this platform,we can obtain a magnetic sensitivity of 465 nT/Hz^(1/2).This experimental platform with convenient operation and low noise has the potential to become an independent magnetic measuring instrument.

关 键 词：CENTER CENTERS FIR 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TN791[自动化与计算机技术—控制科学与工程]