The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2026
Filed:
Dec. 01, 2023
United States of America As Represented BY the Administrator of Nasa, Washington, DC (US);
Branimir Blagojevic, Greenbelt, MD (US);
Manuel A. Quijada, Greenbelt, MD (US);
David Carnahan, Waltham, MA (US);
Krzysztof Kempa, Chestnut Hill, MA (US);
United States of America as represented by the Administrator of NASA, Washington, DC (US);
Abstract
The aspects of the disclosed embodiments are directed to a filter that includes a substrate, a dielectric layer disposed on the substrate in a pattern, leaving exposed portions of the substrate. A metallic layer is deposited over the dielectric layer and exposed portions of the substrate forming metallic structures over the exposed portions of the substrate and complementary metal patterns on the dielectric layer. A face of the filter is configured in a complimentary square checkerboard pattern, alternating between the metallic structures over the exposed portions of the substrate and complementary metal patterns on the dielectric layer. The filter is configured to operate when wavelengths of light impinge upon the checkerboard face of the filter and excite the metallic structures that are patterned atop the dielectric layer.