[19a-A24-1~10] KS.1 Solid State Quantum Sensor Group

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[19a-A24-6] Compact and high-sensitive quantum magnetometer based on a diamond microring

〇Kosuke Takada¹, Ryota Katsumi^1,2, Kenta Kawai¹, Daichi Sato¹, Takuto Itagaki¹, Daichi Nozaki¹, Takashi Yatsui^1,2 (1.TUT, 2.UT)

Keywords:

quantum sensing,NV center,ring resonator

Quantum magnetometry using nitrogen-vacancy (NV) centers in diamond is capable of highly sensitive and high-resolution measurements. However, current devices suffer from a trade-off between the sensitivity and the resolution such that the devices with the highest sensitivity need mm-sized diamond structures. In this work, we aimed to conquer this problem by cavity-enhanced NV emission. We will report the high-quality factor of the diamond microring cavity, on-chip quantum manipulations, and sensitivity characterization.