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. 05, 2013
Filed:
Sep. 07, 2010
Christophe Fery, Niedereschach, DE;
Gael Pilard, Moenchweiler, DE;
Christophe Fery, Niedereschach, DE;
Gael Pilard, Moenchweiler, DE;
Thomson Licensing, Issy-les-Moulineaux, FR;
Abstract
The optical storage medium comprises a substrate layer, a read-only data layer with a pit structure disposed on the substrate layer, a cover layer and a nonlinear layer with a super-resolution structure disposed between the data layer and the data layer, which super-resolution structure includes a semiconductor material and grainy impurities of a dielectric material, wherein the semiconductor material has an increased reflectivity, when irradiated with a laser beam, and wherein the dielectric material is arranged as a dielectric layer having a thickness below 5 nm. The dielectric material consists advantageously of an inhomogeneous layer of a nitride material, for example GeN, arranged between a first and a second nonlinear layer.