David Carnahan

Title: David Carnahan and Plasmonic Structured Color Filters

Introduction

David Carnahan is an inventor associated with Waltham, Massachusetts. His patent work includes a design for plasmonic structured color filters intended for hyperspectral detection. The patent lists the United States of America as represented by the Administrator of NASA as the assignee.

Latest Patents

Carnahan is credited with 1 patent: “Plasmonic Structured Color Filters for Hyperspectral Detection.” The disclosed filter uses a substrate with a patterned dielectric layer that leaves portions of the substrate exposed. A metallic layer is deposited over both the dielectric layer and the exposed substrate, creating metallic structures and complementary metal patterns. Together, these elements form an alternating square checkerboard pattern. When light reaches the filter, its wavelengths excite the metallic structures, supporting hyperspectral detection.

Career Highlights

The patent reflects work on optical filtering and the use of patterned metallic structures to interact with light. The listed assignee connects the invention to NASA.

Collaborations

Branimir Blagojevic and Manuel A. Quijada are identified as Carnahan’s coworkers. Their names are provided as professional associations, though the supplied information does not specify their roles in the patent.

Conclusion

David Carnahan’s patent describes a checkerboard-patterned plasmonic filter designed to support hyperspectral detection, highlighting an innovation associated with NASA.