Optical discs as low-cost, quasi-random nanoimprinting templates for photon management

US9786845B1 · kind B1 · utility

Assignee

• Northwestern University · US

Inventors

• Alexander James Smith · Chicago, US
• Chen Wang · Chicago, US
• Jiaxing Huang · Sunnyvale, US
• Cheng Sun · Wilmette, US

Key dates

• Filing date: Aug 28, 2015
• Grant date: Oct 10, 2017
• Expiry date: Aug 28, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549

Abstract

Methods of patterning a layer of a photonic device are provided using stamps or masks derived from pre-written optical media discs. One method comprises pressing a stamp on a surface of a layer of a photonic device, the stamp comprising a stamping surface which defines a negative replica of a quasi-random pattern of nanostructures defined in a recording layer of a pre-written optical media disc, for a period of time sufficient to imprint the quasi-random pattern of nanostructures defined in the recording layer of the pre-written optical media disc onto the surface of the layer of the photonic device; and removing the stamp. The stamps, the masks, and the photonic devices comprising the patterned layers are also provided.