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. 26, 2010
Filed:
Jul. 24, 2007
Harald Walter, Kilchberg, CH;
Gilbert Gugler, Marly, CH;
Alexander Stuck, Wettingen, CH;
Robert Beer, Marly, CH;
Marc Pauchard, Fribourg, CH;
Harald Walter, Kilchberg, CH;
Gilbert Gugler, Marly, CH;
Alexander Stuck, Wettingen, CH;
Robert Beer, Marly, CH;
Marc Pauchard, Fribourg, CH;
Abstract
A Zero-order diffractive filter comprising a first layer () with a periodic diffractive microstructure, forming a waveguide, and at least one adjacent second layer (), wherein said first layer () has a refractive index that is higher than the refractive index of said second layer () by at least 0.2. At least one of said second layers () is a porous layer comprising nanopores. The period Λ of the diffractive microstructure is between 100 nm and 3000 nm.