公开(公告)号：US20240255468A1

公开(公告)日：2024-08-01

申请号：US18578880

申请日：2022-07-12

申请人： QNAMI AG

发明人： Patrick Maletinsky ,  Hai Zhong ,  Felipe Favaro De Oliveira

IPC分类号： G01N27/82 ,  G01N24/00

CPC分类号： G01N27/82 ,  G01N24/006

摘要： The invention concerns a method for nonperturbative detection of one or more magnetic inhomogeneities resulting from nano-defects in a single longitudinal anisotropic magnetic sample structure having a nanometric cross-sectional dimension. A solid-state lattice with a single spin defect is used for magnetometry assessment of the anisotropic magnetic sample structure to determine quantitative information concerning minor defects and inconsistencies in the sample structure.

公开(公告)号：US20240167970A1

公开(公告)日：2024-05-23

申请号：US18279792

申请日：2022-02-11

申请人： THE UNIVERSITY OF HONG KONG

发明人： Zhiqin CHU ,  Jixiang JING ,  Feng XU

IPC分类号： G01N24/00 ,  G01N24/10 ,  H01L33/02 ,  H01L33/04

CPC分类号： G01N24/006 ,  G01N24/10 ,  H01L33/025 ,  H01L33/04

摘要： A small volume optoelectronic chip contains an LED chip with a diamond having nitrogen-vacancy centers embedded therein. The LED chip generates light having a first wavelength, and the diamond with nitrogen-vacancy centers generates light having a second wavelength after excitement with light having the first wavelength. The diamond may also be on or adjacent the LED.

公开(公告)号：US20240142396A1

公开(公告)日：2024-05-02

申请号：US18547402

申请日：2022-03-25

申请人： Robert Bosch GmbH

发明人： Tino Fuchs

IPC分类号： G01N24/00 ,  G01R33/24 ,  G01R33/32 ,  G01R33/381

CPC分类号： G01N24/006 ,  G01R33/24 ,  G01R33/323 ,  G01R33/381

摘要： A sensor device for magnetic field measurement using optical magnetic resonance measurement (ODMR) includes a sensor device for magnetic field measurement using ODMR, including a diamond having a plurality of nitrogen defects, a laser emitter, a photodetector, and a circuit board. The laser emitter is designed for the fluorescence excitation of the nitrogen defects, and the photodetector is designed to receive fluorescence radiation of the nitrogen defects. The circuit board has a plurality of layers comprising at least one inner layer; the laser emitter is disposed on an upper face of the circuit board; the photodetector is disposed on a lower face of the circuit board; the diamond is disposed in the interior of the circuit board in the plane of extension of the at least one inner layer; and at least one of the layers has current-carrying structures designed to produce a homogeneous magnetic field which is oriented perpendicularly to the layers of the circuit board and which permeates the diamond.

公开(公告)号：US20230341346A1

公开(公告)日：2023-10-26

申请号：US18342808

申请日：2023-06-28

申请人： Oil Crops Research Institute of Chinese Academy of Agricultural Sciences ,  Wuhan Norrida Biotechnological Co., LTD

发明人： Zhaowei Zhang ,  Wenqin Wu ,  Xiao Chen ,  Ling Cheng ,  Li Yu ,  Xiupin Wang ,  Peiwu Li

IPC分类号： G01N27/30 ,  G01N23/2251 ,  G01N23/20 ,  G01N21/31 ,  G01N23/20091 ,  G01N24/00 ,  G01N33/569 ,  G01N27/27 ,  G01N27/327

CPC分类号： G01N27/305 ,  G01N23/2251 ,  G01N23/20 ,  G01N21/31 ,  G01N23/20091 ,  G01N24/00 ,  G01N33/56961 ,  G01N27/27 ,  G01N27/3275 ,  G01N2333/38

摘要： The present disclosure belongs to the technical field of biosensors and particularly provides a construction method for a photocathode indirect competition sensor and an evaluation method. The construction method includes: using Z-type Bi2O3/CuBi2O4 as a sensing platform; calculating a photoinduced electron Z-type transfer path and an energy band structure of Bi2O3 and CuBi2O4 using a density functional theory (DFT); and constructing a Bi2O3/CuBi2O4-based biosensor. A photoelectrochemical (PEC) photocathode biosensor based on a Bi2O3/CuBi2O4 heterojunction prepared through the solution has good repeatability, reproducibility, stability, and specificity for detecting a target. The PEC biosensor constructed in the solution of the present disclosure has a broad application prospect in the fields of healthcare, environment, and food.

公开(公告)号：US20230294085A1

公开(公告)日：2023-09-21

申请号：US18325942

申请日：2023-05-30

申请人： Western Digital Technologies, Inc.

发明人： Patrick BRAGANCA ,  Daniel BEDAU

IPC分类号： B01L3/00 ,  H03B15/00 ,  H01F10/32 ,  G01N27/72 ,  G01N24/00

CPC分类号： B01L3/502 ,  H03B15/006 ,  H01F10/3259 ,  H01F10/3286 ,  H01F10/329 ,  G01N27/72 ,  G01N24/00 ,  B01L2400/043 ,  B01L2300/0663 ,  G01R33/1284

摘要： Disclosed herein are methods and apparatuses for sequencing nucleic acids using a detection device, the detection device comprising a plurality of spin torque oscillators (STOs) and at least one fluidic channel. In some embodiments of a method, a nucleotide precursor is labeled with a magnetic nanoparticle (MNP), and the labeled nucleotide precursor is added to the fluidic channel of the detection device. It is determined whether at least one of the plurality of STOs is generating a signal. Based at least in part on the determination of whether the at least one of the plurality of STOs is generating the signal, it is determined whether the labeled nucleotide precursor has been detected.

公开(公告)号：US20230084726A1

公开(公告)日：2023-03-16

申请号：US17829551

申请日：2022-06-01

申请人： University of Maryland, College Park ,  The President and Fellows of Harvard College

发明人： Ronald Walsworth ,  Nithya Arunkumar ,  Connor Hart ,  Dominik Bucher ,  David Glenn

IPC分类号： G01N24/00

摘要： Systems and methods of quantum sensing include obtaining information regarding a target signal in electronic spin states of quantum defects in an ensemble of quantum defects, mapping the information regarding the target signal from the electronic spin states of the quantum defects to corresponding nuclear spin states associated with the quantum defects, applying a light pulse to the ensemble of quantum defects to reset the electronic spin states of the quantum defects, and repeating a readout stage a plurality of times within a readout duration. The readout stage includes mapping the information regarding the target signal back from the nuclear spin states to the corresponding electronic spin states and applying a data acquisition readout pulse to optically measure the electronic spin states of the quantum defects.

公开(公告)号：US11480632B2

公开(公告)日：2022-10-25

申请号：US17235213

申请日：2021-04-20

申请人： HI LLC

发明人： Micah Ledbetter ,  Ricardo Jiménez-Martínez ,  Ethan Pratt ,  Hooman Mohseni ,  Jamu Alford

IPC分类号： G01R33/032 ,  G01R33/028 ,  G01R33/32 ,  G01N24/00 ,  G01R33/025 ,  G01R33/00

摘要： A magnetic field measurement system includes at least one magnetometer having a vapor cell, a light source to direct light through the vapor cell, and a detector to receive light directed through the vapor cell; at least one magnetic field generator disposed adjacent the vapor cell; and a feedback circuit coupled to the at least one magnetic field generator and the detector of the at least one magnetometer. The feedback circuit includes a first feedback loop that includes a first low pass filter with a first cutoff frequency and a second feedback loop that includes a second low pass filter with a second cutoff frequency. The first and second feedback loops are configured to compensate for magnetic field variations having a frequency lower than the first or second cutoff frequency, respectively.

公开(公告)号：US20220307997A1

公开(公告)日：2022-09-29

申请号：US17629171

申请日：2020-07-22

申请人： QUANTUM TECHNOLOGIES UG (HAFTUNGSBESCHRÄNKT)

发明人： Jan Berend Meijer ,  Robert Staacke ,  Nils Meijer ,  Bernd Burchard

IPC分类号： G01N24/00 ,  C01B32/26 ,  C01B32/28 ,  C09K11/65

摘要： A sensor system is based on diamonds with a high density of NV centers. The description includes a) methods for producing the necessary diamonds of high NV center density, b) characteristics of such diamonds, c) sensing elements for utilizing the fluorescence radiation of such diamonds, d) sensing elements for utilizing the photocurrent of such diamonds, e) systems for evaluating these quantities, f) reduced noise systems for evaluating these systems, g) enclosures for using such systems in automatic placement equipment, g) methods for testing these systems, and h) a musical instrument as an example of an ultimate application of all these devices and methods.

公开(公告)号：US20220198314A1

公开(公告)日：2022-06-23

申请号：US17560451

申请日：2021-12-23

申请人： COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

发明人： Pierre-André MORTEMOUSQUE ,  Baptiste JADOT ,  Tristan MEUNIER ,  Matias URDAMPILLETA

IPC分类号： G06N10/60 ,  G01N24/00

摘要： A method of measuring the spin state of two charged particles able to adopt a first, second, third, and fourth spin state S, T+, T0 and T, the two charged particles being contained in a system, including first and second quantum dots characterised by a first parameter Γ relative to the potential barrier separating the two quantum dots and a second parameter ε corresponding to the difference in energy between the fundamental states of the first and second quantum dots, the couple formed by the values of these two parameters defining an operating point of the system as a function of which the system adopts a first charge state noted (1,1) wherein each quantum dot contains a charged particle, a second charge state noted (2,0) wherein the first quantum dot contains two charged particles or a third charge state noted (0,2) wherein the second quantum dot contains two charged particles.

公开(公告)号：US11340320B2

公开(公告)日：2022-05-24

申请号：US16626259

申请日：2018-06-29

申请人： DANMARKS TEKNISKE UNIVERSITET

发明人： Alexander Huck ,  Sepehr Ahmadi ,  Haitham A. R. El-Ella ,  Ulrik Lund Andersen

IPC分类号： G01R33/32 ,  G01N24/00 ,  G01R33/032

摘要： The present invention relates to a magnetometer (100) using optically detected magnetic resonance (ODMR), where a solid state material (10), such as diamond, with an ensemble of paramagnetic defects, such as nitrogen vacancies centers NV, is applied. An optical cavity (20) is optically excited by an irradiation laser (25) arranged therefore. A coupling structure (30) causes a microwave excitation (Ω) of the paramagnetic defects, and a permanent magnetic field (40, B_C) causes a Zeeman splitting of the energy levels in the paramagnetic defects. A probing volume (PV) in the solid state material is thereby defined by the spatially overlapping volume of the optical excitation by the irradiation laser (25), the coupling structure (30) also exciting the defects, and the constant magnetic field. The magnetometer then measures an unknown magnetic field by detecting emission (27), e.g. fluorescence, from the defects in the probing volume (PV) from the double excitation of the defects by the irradiation laser, and the coupling structure exciting these defects.