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:
Jun. 24, 2025
Filed:
Aug. 09, 2021
Ram Photonics, Llc, San Diego, CA (US);
John R. Marciante, Webster, NY (US);
Jordan P. Leidner, Rochester, NY (US);
RAM Photonics Industrial, LLC, Webster, NY (US);
Abstract
An immersion grating includes a dielectric substrate having an incident light surface and a second surface opposing the incident light surface. The dielectric substrate is characterized by a substrate index of refraction. The immersion grating also includes at least one dielectric layer coupled to the second surface of the dielectric substrate. The at least one dielectric layer is characterized by a layer index of refraction greater than the substrate index of refraction. The immersion grating further includes a periodic structure formed in the at least one dielectric layer. The immersion grating is characterized by a diffraction efficiency greater than 99% over a wavelength range from 1041 nm to 1066 nm.