Back to results
US 12,017,919 B2Granted
Orientation independent, room temperature, hyperpolarization of diamond nano- and micro-particles
AssigneeThe Regents of the University of California
InventorsAlexander Pines, Ashok Ajoy, Raffi Nazaryan, Xudong Lv, Carlos Meriles
Life of this patent
Estimating the term…
Abstract
A method of hyperpolarizing diamond particles includes applying a laser to a sample of the diamond particles, irradiating the diamond particles with a sweeping microwave to cause diamond polarization, shuttling the diamond particles through a magnetic field to detect 13C nuclei in the diamond particles, and relaying the diamond polarization to nuclear spins to one of a surrounding solid or fluid.
Claims12
A method of hyperpolarizing diamond particles, comprising:
- applying a laser to a sample of the diamond particles in a low magnetic field;
- irradiating the diamond particles with a microwave signal sweeping across a frequency range to cause diamond polarization in the low magnetic field, the microwave signal direction being switchable between two directions, the direction determining a sign of the polarization;
- shuttling, with a movable carrier, the diamond particles back and forth between the low magnetic field and a high magnetic field to detect 13C nuclei in the diamond particles, the high magnetic field being higher than the low magnetic field;
- and
- transferring the diamond polarization to nuclear spins to one of a surrounding solid or fluid.
2 more elements
Dependencies are inferred from the claim text.