Micro-vacancy center device
First Claim
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1. A vector magnetometer apparatus, the apparatus comprising:
- a micron-sized vacancy center diamond nitrogen-vacancy (micro-DNV) sensor positioned in a first layer of a multi-layer structure;
a micro-radio-frequency (RF) source configured to generate RF pulses to stimulate nitrogen-vacancy centers in the micro-vacancy center sensor;
a micron-sized light source positioned at a second layer of the multi-layer structure;
a fixed bias magnet; and
one or more micro-photo detectors configured to detect fluorescence radiation emitted by stimulated nitrogen-vacancy centers and positioned in the first layer of the multi-layer structure,wherein the micro-vacancy center sensor comprises a micron-sized vacancy center crystal embedded in a cured bonding material, and wherein the micro-vacancy center assembly is operable to perform vector magnetometry when positioned in an external magnetic field.
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Abstract
A method for providing a miniature vector magnetometer includes embedding a micron-sized diamond nitrogen-vacancy (DNV) crystal into a bonding material. The bonding material including the embedded micron-sized DNV crystal is cured to form a micro-DNV sensor. A micro-DNV assembly is formed by integrating the micro-DNV sensor with a micro-radio-frequency (RF) source, a micron-sized light source, a reference bias magnet, and one or more micro-photo detectors. The micro-DNV assembly is operable to perform vector magnetometry when positioned in an external magnetic field.
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Citations
16 Claims
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1. A vector magnetometer apparatus, the apparatus comprising:
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a micron-sized vacancy center diamond nitrogen-vacancy (micro-DNV) sensor positioned in a first layer of a multi-layer structure; a micro-radio-frequency (RF) source configured to generate RF pulses to stimulate nitrogen-vacancy centers in the micro-vacancy center sensor; a micron-sized light source positioned at a second layer of the multi-layer structure; a fixed bias magnet; and one or more micro-photo detectors configured to detect fluorescence radiation emitted by stimulated nitrogen-vacancy centers and positioned in the first layer of the multi-layer structure, wherein the micro-vacancy center sensor comprises a micron-sized vacancy center crystal embedded in a cured bonding material, and wherein the micro-vacancy center assembly is operable to perform vector magnetometry when positioned in an external magnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vector magnetometer apparatus, the apparatus comprising:
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a micro-sized vacancy center sensor; a micro-radio-frequency (RF) source configured to generate RF pulses to stimulate vacancy centers in the micro-sized vacancy center sensor; a micro-sized light source; a fixed bias magnet; and one or more micro-photo detectors configured to detect fluorescence radiation emitted by stimulated vacancy centers, wherein the micro-sized vacancy center sensor comprises a micro-sized vacancy center material embedded in a cured bonding material, and wherein the micro-sized vacancy center assembly is operable to perform vector magnetometry when positioned in an external magnetic field; wherein micro-sized light source comprises a green micro-sized light-emitting diode (LED), wherein the green micro-sized LED is formed on a chip, wherein each of the one or more micro-photo detectors comprises a red micro-photo detector, and wherein the one or more red micro-photo detectors are formed on the chip. - View Dependent Claims (14, 15)
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16. A vector magnetometer apparatus, the apparatus comprising:
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a micro-sized vacancy center sensor; a micro-radio-frequency (RF) source configured to generate RF pulses to stimulate vacancy centers in the micro-sized vacancy center sensor; a micro-sized light source; a fixed bias magnet; and one or more micro-photo detectors configured to detect fluorescence radiation emitted by stimulated vacancy centers, wherein the micro-sized vacancy center sensor comprises a micro-sized vacancy center material embedded in a cured bonding material, and wherein the micro-sized vacancy center assembly is operable to perform vector magnetometry when positioned in an external magnetic field; wherein micro-sized light source comprises a micro-sized light-emitting diode (LED), wherein the micro-sized LED is formed on a chip, wherein each of the one or more micro-photo detectors comprises a micro-photo detector, and wherein the one or more micro-photo detectors are formed on the chip; wherein the micro-sized LED is configured to generate light pulse sequences by using Ramsey, Hahn echo or Barry timing sequences to attain higher sensitivity and enable measuring AC varying magnetic fields.
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Specification