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:
Sep. 17, 2013
Filed:
Nov. 09, 2009
Seng-tiong Ho, Wheeling, IL (US);
Yingyan Huang, Wilmette, IL (US);
Seng-Tiong Ho, Wheeling, IL (US);
Yingyan Huang, Wilmette, IL (US);
Other;
Abstract
An apparatus for coupling light between input and output waveguides includes a substrate, an input waveguide disposed on the substrate and comprising a first optical axis, and an output waveguide disposed on the substrate and comprising a second optical axis vertically offset from the first optical axis. A superlens is disposed on the substrate between the input waveguide and the output waveguide. The superlens has a middle optical axis and comprises a vertically graded refractive index film having a refractive index distribution n(y), where y is a vertical direction substantially perpendicular to the middle optical axis.