Sumida Corporation

Kyocera Document Solutions Inc.

Kyoto University

Kan Hayashi

Yoshiharu Yoshii

Norikazu Mizuochi

Masaki Saito

Yuki Takemura

Tsutomu Otsuka

Masateru Hashimoto

Shingo Hamada

Tsutomu Ootsuka

A high-frequency magnetic field generating device includes two coils arranged with a predetermined gap in parallel with each other, the two coils (a) in between which electron spin resonance material is arranged or (b) arranged at one side from electron spin resonance material; a high-frequency power supply that generates microwave current that flows in the two coils; and a transmission line part connected to the two coils, that sets a current distribution so as to locate the two coils at positions other than a node of a stationary wave.

High-frequency magnetic field generating device

A magnetic resonance memberincludes a diamond crystal including plural diamond nitrogen vacancy center, and a high-frequency magnetic field generatorapplies magnetic field of microwave to the magnetic resonance member. The aforementioned plural diamond nitrogen vacancy centers include diamond nitrogen vacancy centers arranged in directions of predetermined plural axes among four axes that indicates four connection directions of carbon atoms in the diamond crystal; and the aforementioned magnetic resonance memberis arranged in a direction that provides a substantially largest sensitivity of the measurement target magnetic field in the diamond nitrogen vacancy centers arranged in the predetermined plural axes.

Magnetic field measurement apparatus and magnetic field measurement method

A magnetic resonance memberincludes a crystal structure and is capable of electron spin quantum operations with microwaves of different frequencies corresponding to arrangement orientations of a vacancy and an impurity in a crystal lattice. A magnetic field transmission unitsenses a measurement target magnetic field at plural measurement positions different from each other, and applies application magnetic fields corresponding to the measurement target magnetic field sensed at the plural measurement positions to the magnetic resonance memberalong respective different directions corresponding to the aforementioned arrangement orientations. A measurement control unitcontrols a high frequency power supply, and determines detection values detected by a detecting device (an irradiating deviceand a light receiving device) of the physical phenomena corresponding to the plural measurement positions. A calculation unitcalculates the measurement target magnetic field at the plural measurement positions on the basis of the detection values.

Growing community of inventors

Kyoto, Japan

Kan Hayashi