Chinese Journal of Quantum Electronics ›› 2023, Vol. 40 ›› Issue (4): 500-509.doi: 10.3969/j.issn.1007-5461.2023.04.009

• Quantum Optics • Previous Articles     Next Articles

Design of an integrated vibration detection module based on diamond NV color centers

CHEN Liying 1,2, HUANG Kun 1*, WANG Qi 1, YAN Shinong 2   

  1. ( 1 State Key Laboratory of Dynamic Testing Technology, North University of China, Taiyuan 030051, China; 2 School of Semiconductors and Physics, North University of China, Taiyuan 030051, China )
  • Received:2022-10-09 Revised:2022-11-08 Published:2023-07-28 Online:2023-07-28

Abstract: The highly precise sensitivity of atoms to magnetic fields has led to the increasing application of diamond nitrogen vacancy (NV) color centers in the field of quantum sensing. To investigate the superiority of diamond in vibration magnetometry, an integrated vibration module is used to integrate a conventional confocal system on a PCB board for vibration testing. A cylindrical permanent magnet is used as the mass block for vibration magnetometry. Due to the influence of external vibrations, the distance between the permanent magnet and the diamond NV color center will change, so the magnetic field intensity on the diamond NV color center will also change. The detection of the vibration effect is obtained by analyzing the light-detected magnetic resonance (ODMR) fluorescence signal of diamond NV color core. Integrated vibration experiments are performed to validate the vibration effect at a distance of 15 mm from the permanent magnet, and the sensitivity of the displacement noise based on the vibration sensing of diamond nitrogen vacancy color core is tested to be 11 nm /Hz1/2.

Key words: quantum optics, vibration detection, optical detection magnetic resonance, magnetic induction

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