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公开(公告)号：US20240255594A1
公开(公告)日：2024-08-01
申请号：US18560882
申请日：2022-06-07
CPC分类号： G01R33/26 , G01R33/3642
摘要： A high-frequency magnetic field generator 2 applies microwave to a magnetic resonance member 1. A magnet 3 applies a static magnetic field to the magnetic resonance member 1. An irradiating device 12 irradiates the magnetic resonance member 1 with incident light of a specific wavelength. An FT 4 senses a measurement target magnetic field using a primary coil 4a and applies an application magnetic field corresponding to the sensed measurement target magnetic field to the magnetic resonance member 1 using a secondary coil 4b. A pillar-shaped light guide member 41 guides the incident light to the magnetic resonance member 1, and a pillar-shaped light guide member 42 guides fluorescence that the magnetic resonance member 1 emits from the magnetic resonance member 1. Further, the magnetic resonance member 1 is arranged between an end surface of the light guide member 41 and an end surface of the light guide member 42 in a hollow part of the secondary coil 4b of the FT 4 and in a hollow part of the aforementioned magnet 3.
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公开(公告)号：US20240255588A1
公开(公告)日：2024-08-01
申请号：US18560860
申请日：2022-03-08
IPC分类号： G01R33/00 , G01R33/383 , G01R33/60
CPC分类号： G01R33/0011 , G01R33/383 , G01R33/60
摘要： A high-frequency magnetic field generator 2 applies microwave to a magnetic resonance member 1 capable of an electron spin quantum operation using the microwave. A magnet 3 applies a static magnetic field to the magnetic resonance member 1. An irradiating device 12 irradiates the magnetic resonance member 1 with light of a specific wavelength. A flux transformer 4 senses a measurement target magnetic field using a primary coil 4a and applies an application magnetic field corresponding to the sensed measurement target magnetic field to the magnetic resonance member 1 using a secondary coil 4b. Further, the magnetic resonance member 1 is arranged at a position in a hollow part of the secondary coil 4b of the flux transformer 4 and in a hollow part of the magnet 3.
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公开(公告)号：US20230184853A1
公开(公告)日：2023-06-15
申请号：US17922473
申请日：2021-04-15
发明人： Yoshiharu YOSHII , Tsutomu OOTSUKA , Masateru HASHIMOTO , Norikazu MIZUOCHI , Kan HAYASHI , Yuki TAKEMURA
IPC分类号： G01R33/24
CPC分类号： G01R33/24
摘要： A magnetic resonance member 1 includes a diamond crystal including plural diamond nitrogen vacancy center, and a high-frequency magnetic field generator 2 applies magnetic field of microwave to the magnetic resonance member 1. 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 member 1 is 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.
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公开(公告)号：US20230194448A1
公开(公告)日：2023-06-22
申请号：US17922500
申请日：2021-04-19
CPC分类号： G01N24/10 , G02B17/004 , G01N21/64 , G01N2201/0636
摘要： A substrate 1 includes a color center excited by excitation light, and at least a pair of reflection members 21a, 21b are arranged with gaps from the substrate 1. The substrate 1 causes the excitation light entering the substrate 1 to exit through its surfaces without reflection, and the reflection members 21a, 21b cause the exited excitation light to reflect at the reflection surface 21-1 or 21-2 and enter the substrate 1, and cause the excitation light to repeatedly enter and exit the substrate 1 and thereby pass through the substrate 1 only a predetermined number of times. Here, the irradiating device 4 emits the excitation light such that the excitation light is incident to the reflection surface 21-1 or 21-2 with an angle perpendicular to one axis among two axes of the reflection surface 21-1 or 21-2 and with a predetermined slant angle from the other axis.
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公开(公告)号：US20230051777A1
公开(公告)日：2023-02-16
申请号：US17794124
申请日：2021-02-18
发明人： Yoshiharu YOSHII , Masateru HASHIMOTO , Tsutomu OOTSUKA , Shingo HAMADA , Yuki TAKEMURA , Kan HAYASHI , Norikazu MIZUOCHI
IPC分类号： G01R33/24
摘要： A magnetic resonance member 1 includes 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 unit 4 senses 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 member 1 along respective different directions corresponding to the aforementioned arrangement orientations. A measurement control unit 21 controls a high frequency power supply 12, and determines detection values detected by a detecting device (an irradiating device 5 and a light receiving device 6) of the physical phenomena corresponding to the plural measurement positions. A calculation unit 22 calculates the measurement target magnetic field at the plural measurement positions on the basis of the detection values.
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6.发明申请公开(公告)号：US20220091201A1
公开(公告)日：2022-03-24
申请号：US17457931
申请日：2021-12-07
申请人： SUMIDA CORPORATION
发明人： Yuki TAKEMURA , Yoshiharu YOSHII , Masaki SAITO
IPC分类号： G01R33/26
摘要： A measurement device includes a microwave generator, an electron spin resonance member, and an observation system. The microwave generator is configured to generate a microwave. The microwave is configured for an electron spin quantum operation based on a Rabi oscillation. The microwave generator has a coil configured to emit the microwave and an electrostatic capacitance member electrically connected in parallel to the coil. The microwave is irradiated to the electron spin resonance member. The observation system is configured to measure a physical quantity in a measured field in response to a state of the electron spin resonance member when the electron spin resonance member is irradiated by the microwave. The electrostatic capacitance member is directly connected to the coil or is arranged between the coil and an electric element that is electrically connected to the coil.
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公开(公告)号：US20200271735A1
公开(公告)日：2020-08-27
申请号：US16783847
申请日：2020-02-06
申请人： SUMIDA CORPORATION
发明人： Yuki TAKEMURA , Yoshiharu YOSHII , Masaki SAITO
IPC分类号： G01R33/26
摘要： A measurement device includes a microwave generator, an electron spin resonance member, and an observation system. The microwave generator is configured to generate a microwave. The microwave is configured for an electron spin quantum operation based on a Rabi oscillation. The microwave generator has a coil configured to emit the microwave and an electrostatic capacitance member electrically connected in parallel to the coil. The microwave is irradiated to the electron spin resonance member. The observation system is configured to measure a physical quantity in a measured field in response to a state of the electron spin resonance member when the electron spin resonance member is irradiated by the microwave. The electrostatic capacitance member is directly connected to the coil or is arranged between the coil and an electric element that is electrically connected to the coil.
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