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:
Oct. 10, 2017
Filed:
Feb. 01, 2017
Joanna N. Ptasinski, San Diego, CA (US);
Stephen D. Russell, San Diego, CA (US);
Joanna N. Ptasinski, San Diego, CA (US);
Stephen D. Russell, San Diego, CA (US);
United States of America, as Represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A tunable ultra-compact spectrometer and methods for spectrometry therefor can include a single pixel and a Fresnel zone plate having a focal length at a first temperature Tand a first wavelength λ, and a focal point. The pixel can be twenty micrometers square and can be placed at a distance from the pixel that equal to the focal length so that the focal point is at the pixel. The Fresnel zone plate can be made of a material that causes the same focal point at the pixel at T, but at a different wavelength λthan wavelength λ. A heat source can selectively add heat to the Fresnel zone plate to cause a second temperature T. Exemplary materials for the Fresnel zone plate can be quartz for visible wavelengths, silicon for infrared wavelength, or other materials, according to the λ(s) of interest.