John W Zeller

Title: Innovations by John W. Zeller: Pioneering Advances in Microbolometers and Photodetectors

Introduction

John W. Zeller, an accomplished inventor based in Woburn, Massachusetts, has made significant contributions to the field of optical technology. With a total of two patents to his name, Zeller's work primarily focuses on the advancement of microbolometers and photodetectors, utilizing innovative materials such as vanadium oxide (VOx), carbon nanotubes (CNTs), graphene, and silicon germanium (SiGe).

Latest Patents

Zeller's latest patents showcase groundbreaking developments in high-performance detection technologies. The first patent details a high-performance microbolometer that integrates vanadium oxide with CNTs and graphene for longwave infrared (LWIR) applications. This device features a microbridge constructed of Si3N4 and VOx, delivering exceptional low noise and a high dynamic range for LWIR detection. The incorporation of CNTs and graphene significantly enhances performance attributes, including a low noise equivalent temperature difference (NETD) and optimized thermal time constants.

His second patent explores graphene-enhanced SiGe near-infrared photodetectors and outlines methods for their construction. By selectively integrating high-carrier mobility graphene monolayers into cost-effective NIR-sensitive SiGe detector layer structures, Zeller's invention combines the advantageous properties of both materials. The SiGe layer serves as the NIR-absorbing component, while the graphene monolayers facilitate efficient carrier extraction and transport, contributing to improved quantum efficiency and device responsivity.

Career Highlights

Throughout his career, John W. Zeller has been recognized for his innovative approaches to developing optical technologies. He is currently associated with Magnolia Optical Technologies, Inc., where he continues to push the boundaries of photonic device capabilities. His expertise and dedication have positioned him as a vital contributor in the optical technology landscape.

Collaborations

Zeller collaborates closely with fellow experts in the field, including Ashok K. Sood and Yash R. Puri. Together, they work on advancing technologies that integrate various materials, enhancing the performance of optical devices and contributing collectively to innovations in this domain.

Conclusion

John W. Zeller's inventive spirit and commitment to technological advancement are evident in his remarkable patents related to microbolometers and photodetectors. His collaborations and work with Magnolia Optical Technologies, Inc. reflect the ongoing pursuit of innovation within the optical technology field. As he continues to develop groundbreaking solutions, Zeller stands at the forefront of the industry, paving the way for future advancements.