The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2022
Filed:
Jan. 31, 2021
President and Fellows of Harvard College, Cambridge, MA (US);
The Mitre Corporation, Bedford, MA (US);
Matthew James Turner, Cambridge, MA (US);
Edlyn Victoria Levine, Bedford, MA (US);
Pauli Kehayias, Albuquerque, NM (US);
Daniel T. Walters, Bedford, MA (US);
Ronald L. Walsworth, Cambridge, MA (US);
Marko Loncar, Cambridge, MA (US);
Nicholas Ryan Langellier, Cambridge, MA (US);
The MITRE Corporation, McLean, VA (US);
President and Fellows of Harvard College, Cambridge, MA (US);
Abstract
Devices for determining a state of a magnetic field-generating article are provided. In various embodiments, a device comprises: a single crystal diamond having a plurality of NV centers, the single crystal diamond configured to be disposed adjacent to a magnetic field-generating article, and configured to generate a fluorescent signal in response to being illuminated by a light source; a coherent light source configured to generate a light beam directed at the single crystal diamond; a microwave (MW) radiation source configured to irradiate the single crystal diamond with a MW signal; a magnetic field source configured to apply a bias magnetic field to the single crystal diamond; a photosensor configured to collect the fluorescent signal generated by the single crystal diamond; and a computing node operatively coupled to each of the coherent light source, the MW radiation source, the magnetic field source, and the photosensor.