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:
Mar. 30, 2021
Filed:
Aug. 27, 2019
Massachusetts Institute of Technology, Cambridge, MA (US);
John F. Barry, Cambridge, MA (US);
Erik R. Eisenach, Cambridge, MA (US);
Michael F. O'Keeffe, Medford, MA (US);
Jonah A. Majumder, Cambridge, MA (US);
Linh M. Pham, Arlington, MA (US);
Isaac Chuang, Lexington, MA (US);
Erik M. Thompson, Waltham, MA (US);
Christopher Louis Panuski, Somerville, MA (US);
Xingyu Zhang, Cambridge, MA (US);
Danielle A. Braje, Winchester, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
Microwave resonator readout of the cavity-spin interaction between a spin defect center ensemble and a microwave resonator yields fidelities that are orders of magnitude higher than is possible with optical readouts. In microwave resonator readout, microwave photons probe a microwave resonator coupled to a spin defect center ensemble subjected to a physical parameter to be measured. The physical parameter shifts the spin defect centers' resonances, which in turn change the dispersion and/or absorption of the microwave resonator. The microwave photons probe these dispersion and/or absorption changes, yielding a measurement with higher visibility, lower shot noise, better sensitivity, and higher signal-to-noise ratio than a comparable fluorescence measurement. In addition, microwave resonator readout enables coherent averaging of spin defect center ensembles and is compatible with spin systems other than nitrogen vacancies in diamond.