Apparatus and method for estimating absolute axes' orientations for a magnetic detection system
First Claim
1. A system for determining an orientation of a nitrogen vacancy (NV) diamond material comprising:
- the NV diamond material comprising a plurality of NV centers;
a radio frequency (RF) excitation source configured to provide RF excitation to the NV diamond material;
an optical excitation source configured to provide optical excitation to the NV diamond material;
an optical detector configured to receive an optical signal emitted by the NV diamond material, the optical signal being a fluorescence intensity having a plurality of reduced responses across a frequency range of the RF excitation;
a first magnetic field generator configured to generate a control magnetic field that separates the plurality of reduced responses in the optical signal emitted by the NV diamond material;
a second magnetic field generator configured to generate a plurality of calibration magnetic fields; and
a controller configured to;
control the second magnetic field generator to successively generate the plurality of calibration magnetic fields, each having a predetermined direction;
successively receive a plurality of light detection signals from the optical detector based on the optical signals emitted by the NV diamond material;
store a plurality of measurement values based on the successively received plurality of light detection signals; and
calculate a rotation and/or reflection of a predetermined standard orientation of the NV diamond material to an actual orientation of the NV diamond material based on the stored plurality of measurement values.
1 Assignment
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Accused Products
Abstract
A system for determining an orientation of a nitrogen vacancy (NV) diamond material is disclosed. The system includes the NV diamond material having a plurality of NV centers, a magnetic field generator that generates a magnetic field, a radio frequency (RF) excitation source that provides RF excitation, an optical excitation source that provides optical excitation, an optical detector that receives an optical signal emitted by the NV diamond material, and a controller. The controller controls the magnetic field generator to generate a control magnetic field and controls the magnetic field generator to successively generate calibration magnetic fields. The controller successively receives light detection signals from the optical detector, stores measurement values based on the successively received light detection signals, and calculates an orientation of the NV diamond material based on the stored measurement values.
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Citations
29 Claims
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1. A system for determining an orientation of a nitrogen vacancy (NV) diamond material comprising:
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the NV diamond material comprising a plurality of NV centers; a radio frequency (RF) excitation source configured to provide RF excitation to the NV diamond material; an optical excitation source configured to provide optical excitation to the NV diamond material; an optical detector configured to receive an optical signal emitted by the NV diamond material, the optical signal being a fluorescence intensity having a plurality of reduced responses across a frequency range of the RF excitation; a first magnetic field generator configured to generate a control magnetic field that separates the plurality of reduced responses in the optical signal emitted by the NV diamond material; a second magnetic field generator configured to generate a plurality of calibration magnetic fields; and a controller configured to; control the second magnetic field generator to successively generate the plurality of calibration magnetic fields, each having a predetermined direction; successively receive a plurality of light detection signals from the optical detector based on the optical signals emitted by the NV diamond material; store a plurality of measurement values based on the successively received plurality of light detection signals; and calculate a rotation and/or reflection of a predetermined standard orientation of the NV diamond material to an actual orientation of the NV diamond material based on the stored plurality of measurement values.
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2. A system for determining an orientation of a nitrogen vacancy diamond material comprising:
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a nitrogen vacancy (NV) diamond material comprising a plurality of NV centers; a magnetic field generator configured to generate a magnetic field that is applied to the NV diamond material; a radio frequency (RF) excitation source configured to provide RF excitation to the NV diamond material; an optical excitation source configured to provide optical excitation to the NV diamond material; an optical detector configured to receive an optical signal emitted by the NV diamond material, the optical signal being a fluorescence intensity having a plurality of reduced responses across a frequency range of the RF excitation; and a controller configured to; control the magnetic field generator to generate a control magnetic field that separates the plurality of reduced responses in the optical signal emitted by the NV diamond material; control the magnetic field generator to successively generate a plurality of calibration magnetic fields, each having a predetermined direction; successively receive a plurality of light detection signals from the optical detector based on the optical signals emitted by the NV diamond material; store a plurality of measurement values based on the successively received plurality of light detection signals; and calculate an orientation of the NV diamond material based on the stored measurement values. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for determining an orientation of a magneto-optical defect center material comprising:
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a magneto-optical defect center material comprising a plurality of magneto-optical defect centers; a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material; an optical excitation source configured to provide optical excitation to the magneto-optical defect center material; an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material, the optical signal being a fluorescence intensity having a plurality of reduced responses across a frequency range of the RF excitation; a first magnetic field generator configured to generate a control magnetic field that separates the plurality of reduced responses in the optical signal emitted by the magneto-optical defect center material; a second magnetic field generator configured to generate a plurality of calibration magnetic fields; and a controller configured to; control the second magnetic field generator to successively generate the plurality of calibration magnetic fields, each having a predetermined direction; successively receive a plurality of light detection signals from the optical detector based on the optical signals emitted by the magneto-optical defect center material; store a plurality of measurement values based on the successively received plurality of light detection signals; and calculate an orientation of the magneto-optical defect center material based on the stored plurality of measurement values. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system for determining an orientation of a magneto-optical defect center material comprising:
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a magneto-optical defect center material comprising a plurality of magneto-optical defect centers; a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material; an optical excitation source configured to provide optical excitation to the magneto-optical defect center material; an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material, the optical signal being a fluorescence intensity having a plurality of reduced responses across a frequency range of the RF excitation; a first magnetic field generator affixed to a pivot assembly, the pivot assembly being configured to position the first magnetic field generator to a predetermined orientation such that the first magnetic field generator generates a control magnetic field having a predetermined direction that separates the plurality of reduced responses in the optical signal emitted by the magneto-optical defect center material; a second magnetic field generator configured to generate a plurality of calibration magnetic fields; and a controller configured to; control the pivot assembly to position the first magnetic field generator to the predetermined orientation to generate the control magnetic field; control the second magnetic field generator to successively generate the plurality of calibration magnetic fields, each having a predetermined direction; successively receive a plurality of light detection signals from the optical detector based on the optical signals emitted by the magneto-optical defect center material; store a plurality of measurement values based on the successively received plurality of light detection signals; and calculate an orientation of the magneto-optical defect center material based on the stored plurality of measurement values. - View Dependent Claims (25)
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26. A system for determining an orientation of a magneto-optical defect center material comprising:
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a magneto-optical defect center material comprising a plurality of defect centers; a magnetic field generator configured to generate a magnetic field; a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material; an optical excitation source configured to provide optical excitation to the magneto-optical defect center material; an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material, the optical signal being a fluorescence intensity having a plurality of reduced responses across a frequency range of the RF excitation; and a controller configured to; control the magnetic field generator to generate a control magnetic field that separates the plurality of reduced responses in the optical signal emitted by the magneto-optical defect center material; control the magnetic field generator to successively generate a plurality of calibration magnetic fields, each having a predetermined direction; successively receive a plurality of light detection signals from the optical detector based on the optical signals emitted by the magneto-optical defect center material; store a plurality of measurement values based on the successively received plurality of light detection signals; and calculate an orientation of the magneto-optical defect center material based on the stored measurement values. - View Dependent Claims (27)
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28. A system for determining an orientation of a magneto-optical defect center material comprising a plurality of magneto-optical defect centers, comprising:
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means for providing radio frequency (RF) excitation to the magneto-optical defect center material; means for receiving an optical signal emitted by the magneto-optical defect center material, the optical signal being a fluorescence intensity having a plurality of reduced responses across a frequency range of the RF excitation; means for generating a control magnetic field that separates the plurality of reduced responses in the optical signal emitted by the magneto-optical defect center material; means for successively generating a plurality of calibration magnetic fields, each having a predetermined direction; means for successively receiving a plurality of light detection signals based on the optical signals emitted by the magneto-optical defect center material; means for storing a plurality of measurement values based on the successively received plurality of light detection signals; and means for calculating an orientation of the magneto-optical defect center material based on the stored measurement values.
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29. A system for determining an orientation of a magneto-optical defect center material comprising:
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the magneto-optical defect center material comprising a plurality of magneto-optical defect centers; a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material; an optical excitation source configured to provide optical excitation to the magneto-optical defect center material; an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material, the optical signal being a fluorescence intensity having a plurality of reduced responses across a frequency range of the RF excitation; a first magnetic field generator configured to generate a control magnetic field that separates the plurality of reduced responses in the optical signal emitted by the magneto-optical defect center material; a second magnetic field generator configured to generate a plurality of calibration magnetic fields; and a controller configured to; control the second magnetic field generator to successively generate the plurality of calibration magnetic fields, each having a predetermined direction; successively receive a plurality of light detection signals from the optical detector based on the optical signals emitted by the magneto-optical defect center material; store a plurality of measurement values based on the successively received plurality of light detection signals; and calculate a rotation and/or reflection of a predetermined standard orientation of the magneto-optical defect center material to an actual orientation of the magneto-optical defect center material based on the stored plurality of measurement values.
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Specification