Kerry Alexander Johnson

Title: Innovations of Kerry Alexander Johnson

Introduction

Kerry Alexander Johnson is a notable inventor based in Somerville, MA (US). He has made significant contributions to the field of magnetic resonance detection, holding a total of 5 patents. His work focuses on developing methods and apparatuses that enhance the capabilities of magnetic field measurements.

Latest Patents

One of his latest patents is titled "Methods and apparatus for optically detecting magnetic resonance." This invention features a magnetometer that utilizes a crystal sensor with solid-state defects to sense both the magnitude and direction of a magnetic field. The solid-state defects absorb microwave and optical energy, transitioning between various energy states while emitting light intensity that indicates their spin states. The magnetic field influences these spin-state transitions based on the orientation of the solid-state defects, allowing for precise optical readouts that can reconstruct the magnetic field vector.

Another significant patent is "Chopped bias magnetic field solid-state spin sensor for low frequency measurements of physical quantities." This invention applies a bias magnetic field to a solid-state spin sensor, enabling vector magnetic field measurements. To address the issue of noise caused by slow drift in the bias magnetic field, the system reverses the direction of the bias at known intervals. This innovative approach makes the solid-state spin sensor suitable for detecting low-frequency changes in magnetic fields or other physical parameters.

Career Highlights

Kerry Alexander Johnson is affiliated with the Massachusetts Institute of Technology, where he continues to advance research in his field. His work has garnered attention for its practical applications in various scientific and technological domains.

Collaborations

Some of his notable coworkers include Linh M Pham and John Francis Barry, who contribute to the collaborative efforts in their research projects.

Conclusion

Kerry Alexander Johnson's innovative patents and contributions to magnetic resonance detection highlight his role as a leading inventor in the field. His work not only advances scientific understanding but also paves the way for future technological developments.