[8a-C310-1~9] KS.1 Solid State Quantum Sensor Group

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[8a-C310-8] Homogeneous Bias Field Design for Single-Sided Quantum Magnetometers

〇Naota Sekiguchi¹, Ayumi Kanamoto¹, Shoichi Mizuta¹, Takayuki Iwasaki¹, Mutsuko Hatano¹ (1.Science Tokyo)

Keywords:

Diamond,Quantum Sensing,NV center

High-sensitivity quantum magnetometry using nitrogen-vacancy (NV) centers in diamond often requires a homogeneous bias magnetic field. Although conventional double-sided configurations provide a homogeneous field, they prevent one from placing the magnetometer close to the target object. In this study, we designed a single-sided magnet arrangement that forms a saddle point in the magnetic field profile, enabling a homogeneous bias magnetic field within the diamond. This configuration will facilitate the realization of highly sensitive and versatile quantum magnetometer probes.