John B Ketterson

Title: The Innovations of John B Ketterson

Introduction

John B Ketterson is a prominent inventor based in Evanston, IL (US), known for his significant contributions to the field of magnetization and optical modulation. With a total of 9 patents to his name, Ketterson has made remarkable advancements that have implications in various technological applications.

Latest Patents

One of Ketterson's latest patents is titled "Strategies to perform magnetization reversals in ferromagnets." This invention involves systems and methods for reversing magnetization in ferromagnetic samples, utilizing a nanometer-scale cylindrical ferromagnetic sample with a specific height to diameter aspect ratio. The method applies a temporally-varying external field, including an r.f. Pi pulse, to induce a precession magnetization vector that rotates continuously around the sample's longest axis. Additionally, Ketterson has developed a patent for "Ultrafast all-optical modulation of the visible and infrared spectrum with nanorod arrays." This method involves using an optical switch that is irradiated with control and signal beams, allowing for detectable differences in transmitted intensity based on timing.

Career Highlights

Throughout his career, Ketterson has worked with notable institutions, including Northwestern University and the United States government. His work has significantly impacted the fields of physics and engineering, particularly in magnetics and optics.

Collaborations

Ketterson has collaborated with esteemed colleagues such as Bernard M Abraham and Ivan K Schuller, contributing to a rich exchange of ideas and innovations in their respective fields.

Conclusion

John B Ketterson's contributions to science and technology through his patents and collaborations highlight his role as a leading inventor. His work continues to influence advancements in magnetization and optical modulation, showcasing the importance of innovation in modern technology.