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:
Mar. 23, 2021
Filed:
Feb. 25, 2019
Government of the United States As Represented BY the Secretary of the Air Force, Wright-Patterson AFB, OH (US);
Jarrett H. Vella, New Carlisle, OH (US);
John H. Goldsmith, Dayton, OH (US);
Mohammad I. Vakil, Beavercreek, OH (US);
John S. Derov, Beavercreek, OH (US);
United States of America as represented by the Secretary of the Air Force, Wright-Patterson AFB, OH (US);
Abstract
In accordance with various embodiments of the disclosed subject matter, a system, device and method for an electrically tunable wavelength selection filter comprising a wavelength selection filter portion having a plurality of alternating thin films of two dielectric materials with a thin film capacitor displacing one pair of alternating thin films, and an order sorting filter portion electrically isolated from but proximate the wavelength selection filter and having a plurality of alternating thin films of two dielectric materials where one of the dielectric materials exhibits a voltage-dependent refractive index. Independently controlling the capacitor charging voltage and the voltage across the order sorting filter enables selective transmission of narrow spectral lines across a desired frequency region.